muttrc(5)


NAME

   muttrc - Configuration file for the Mutt Mail User Agent

DESCRIPTION

   A  mutt  configuration  file  consists of a series of "commands".  Each
   line of the file may contain  one  or  more  commands.   When  multiple
   commands are used, they must be separated by a semicolon (";").

   The  hash  mark, or pound sign ("#"), is used as a "comment" character.
   You can use it to annotate your initialization file. All text after the
   comment character to the end of the line is ignored.

   Single  quotes  ("'")  and  double  quotes  (""")  can be used to quote
   strings  which  contain  spaces  or  other  special  characters.    The
   difference  between  the two types of quotes is similar to that of many
   popular shell programs, namely that a single quote is used to specify a
   literal  string  (one  that  is  not interpreted for shell variables or
   quoting with a backslash [see next  paragraph]),  while  double  quotes
   indicate  a  string  which should be evaluated.  For example, backticks
   are evaluated inside of double quotes, but not single quotes.

   \ quotes the next character, just as in shells such as  bash  and  zsh.
   For  example,  if  want to put quotes (""") inside of a string, you can
   use "\" to force  the  next  character  to  be  a  literal  instead  of
   interpreted character.

   "\\"  means  to insert a literal "\" into the line.  "\n" and "\r" have
   their usual C meanings of linefeed and carriage-return, respectively.

   A "\" at the end of a line can be used to split commands over  multiple
   lines,  provided  that  the  split points don't appear in the middle of
   command names.

   It is also possible to substitute the output of a Unix  command  in  an
   initialization  file.  This is accomplished by enclosing the command in
   backticks (`command`).

   UNIX environment variables can be accessed like the way it is  done  in
   shells  like  sh and bash: Prepend the name of the variable by a dollar
   ("$") sign.

COMMANDS

   alias [-group name [...]] key address [, address [ ... ]]
   unalias [ *  | key ]

          alias defines an alias key for the given addresses. Each address
          will be resolved into either an email address (user@example.com)
          or a named email address  (User  Name  <user@example.com>).  The
          address  may  be  specified  in  either format, or in the format
          "user@example.com  (User  Name)".   unalias  removes  the  alias
          corresponding  to  the given key or all aliases when "*" is used
          as an argument. The optional -group argument to alias causes the
          aliased address(es) to be added to the named group.

   group [-group name] [-rx EXPR [ ... ]] [-addr address [ ... ]]
   ungroup [-group name ] [ * | [[-rx EXPR [ ... ]] [-addr address [ ... ]]]

          group  is  used  to  directly  add  either  addresses or regular
          expressions to the specified  group  or  groups.  The  different
          categories  of  arguments  to  the  group  command can be in any
          order. The flags  -rx  and  -addr  specify  what  the  following
          strings  (that cannot begin with a hyphen) should be interpreted
          as:  either  a  regular  expression   or   an   email   address,
          respectively.   ungroup  is  used to remove addresses or regular
          expressions from the specified group or groups.  The  syntax  is
          similar  to  the  group command, however the special character *
          can be used to empty a group of all of its contents.

          These address groups can  also  be  created  implicitly  by  the
          alias,  lists,  subscribe  and alternates commands by specifying
          the optional -group option.

          Once defined, these address groups can be used  in  patterns  to
          search for and limit the display to messages matching a group.

   alternates [-group name] regexp [ regexp [ ... ]]
   unalternates [ *  | regexp [ regexp [ ... ]] ]

          alternates  is  used  to  inform  mutt about alternate addresses
          where you receive mail;  you  can  use  regular  expressions  to
          specify  alternate  addresses.   This  affects mutt's idea about
          messages from you, and messages addressed to you.   unalternates
          removes  a regular expression from the list of known alternates.
          The -group flag causes all of the subsequent regular expressions
          to be added to the named group.

   alternative_order type[/subtype] [ ... ]
   unalternative_order [ *  | type/subtype] [...]

          alternative_order  command  permits  you  to  define an order of
          preference which is used by mutt to determine which  part  of  a
          multipart/alternative body to display.  A subtype of "*" matches
          any subtype, as does  an  empty  subtype.    unalternative_order
          removes entries from the ordered list or deletes the entire list
          when "*" is used as an argument.

   auto_view type[/subtype] [ ... ]
   unauto_view type[/subtype] [ ... ]

          This  commands  permits  you  to  specify   that   mutt   should
          automatically  convert  the  given MIME types to text/plain when
          displaying  messages.   For  this  to  work,  there  must  be  a
          mailcap(5)  entry for the given MIME type with the copiousoutput
          flag set.  A subtype of "*" matches  any  subtype,  as  does  an
          empty subtype.

   mime_lookup type[/subtype] [ ... ]
   unmime_lookup type[/subtype] [ ... ]

          This command permits you to define a list of "data" MIME content
          types for which mutt will try to determine the actual file  type
          from the file name, and not use a mailcap(5) entry given for the
          original  MIME  type.    For   instance,   you   may   add   the
          application/octet-stream MIME type to this list.

   bind map1,map2,... key function
          This  command  binds  the given key for the given map or maps to
          the given function. Multiple maps may be specified by separating
          them with commas (no whitespace is allowed).

          Valid  maps are: generic, alias, attach, browser, editor, index,
          compose, pager, pgp, postpone, mix.

          For more information on keys and functions, please  consult  the
          Mutt  Manual.  Note  that  the  function name is to be specified
          without angle brackets.

   account-hook [!]regexp command
          This hook is executed whenever  you  access  a  remote  mailbox.
          Useful to adjust configuration settings to different IMAP or POP
          servers.

   charset-hook alias charset
          This command defines an alias for  a  character  set.   This  is
          useful  to  properly  display  messages  which are tagged with a
          character set name not known to mutt.

   iconv-hook charset local-charset
          This command defines a system-specific name for a character set.
          This  is  useful when your system's iconv(3) implementation does
          not understand MIME character set names  (such  as  iso-8859-1),
          but  instead  insists  on being fed with implementation-specific
          character set names (such as 8859-1).  In  this  specific  case,
          you'd put this into your configuration file:

          iconv-hook iso-8859-1 8859-1

   message-hook [!]pattern command
          Before  mutt  displays (or formats for replying or forwarding) a
          message which matches the given pattern (or, when it is preceded
          by  an  exclamation mark, does not match the pattern), the given
          command is executed.  When multiple  message-hooks  match,  they
          are   executed   in   the  order  in  which  they  occur  in the
          configuration file.

   timeout-hook command
          Run a command periodically when Mutt checks for new mail.   This
          hook is called every $timeout seconds.

   startup-hook command
          Before  mutt  opens  the first mailbox when first starting, mutt
          will run the startup hook for the given command.

   shutdown-hook command
          Before mutt is about to exit, and before the mailbox is  closed,
          mutt will run the shutdown hook for the given command.

   folder-hook [!]regexp command
          When  mutt enters a folder which matches regexp (or, when regexp
          is preceded by an exclamation mark, does not match regexp),  the
          given command is executed.

          When  several  folder-hooks  match a given mail folder, they are
          executed in the order given in the configuration file.

   macro map key sequence [ description ]
          This command binds the given sequence of keys to the  given  key
          in  the given map or maps.  For valid maps, see bind. To specify
          multiple maps, put only a comma between the maps.

   color object foreground background [  regexp ]
   color index foreground background [  pattern ]
   uncolor index pattern [ pattern ... ]

          If your terminal supports color, these commands can be  used  to
          assign  foreground/background  combinations  to certain objects.
          Valid objects are: attachment, body, bold,  header,  hdrdefault,
          index,  indicator,  markers,  message,  normal, quoted, quotedN,
          search, signature, status, tilde, tree, underline, prompt.   The
          body  and  header objects allow you to restrict the colorization
          to a regular expression.  The index object permits you to select
          colored messages by pattern.

          Valid  colors include: white, black, green, magenta, blue, cyan,
          yellow, red, default, colorN.

   mono object attribute [ regexp ]
   mono index attribute [ pattern ]

          For terminals which don't support color, you  can  still  assign
          attributes  to  objects.   Valid attributes include: none, bold,
          underline, reverse, and standout.

   [un]ignore pattern [ pattern ... ]
          The ignore command permits you to specify  header  fields  which
          you  usually  don't  wish  to  see.   Any header field whose tag
          begins with an "ignored" pattern will be ignored.

          The unignore command permits you to define exceptions  from  the
          above mentioned list of ignored headers.

   lists [-group name] regexp [ regexp ... ]
   unlists regexp [ regexp ... ]
   subscribe [-group name] regexp [ regexp ... ]
   unsubscribe regexp [ regexp ... ]

          Mutt  maintains  two  lists  of mailing list address patterns, a
          list of subscribed mailing lists, and a list  of  known  mailing
          lists.   All  subscribed  mailing lists are known.  Patterns use
          regular expressions.

          The lists command adds a mailing list address  to  the  list  of
          known mailing lists.  The unlists command removes a mailing list
          from the lists of  known  and  subscribed  mailing  lists.   The
          subscribe  command adds a mailing list to the lists of known and
          subscribed mailing lists.  The unsubscribe  command  removes  it
          from  the list of subscribed mailing lists. The -group flag adds
          all of the subsequent regular expressions to the named group.

   mbox-hook [!]regexp mailbox
          When mutt changes to a mail folder which matches regexp, mailbox
          will  be  used as the "mbox" folder, i.e., read messages will be
          moved to that folder when the mail folder is left.

          The first matching mbox-hook applies.

   mailboxes filename [ filename ... ]
   unmailboxes [ * | filename ... ]

          The mailboxes specifies folders which can receive mail and which
          will  be  checked  for  new  messages.   When  changing folders,
          pressing space will cycle through folders with  new  mail.   The
          unmailboxes  command is used to remove a file name from the list
          of folders which can receive mail.  If "*" is specified  as  the
          file name, the list is emptied.

   my_hdr string
   unmy_hdr field

          Using  my_hdr, you can define headers which will be added to the
          messages you compose.  unmy_hdr  will  remove  the  given  user-
          defined headers.

   hdr_order header1 header2 [ ... ]
          With  this  command, you can specify an order in which mutt will
          attempt to present headers to you when viewing messages.

   save-hook [!]pattern filename
          When a message matches  pattern,  the  default  file  name  when
          saving it will be the given filename.

   fcc-hook [!]pattern filename
          When  an outgoing message matches pattern, the default file name
          for storing a copy (fcc) will be the given filename.

   fcc-save-hook [!]pattern filename
          This command is an abbreviation for identical fcc-hook and save-
          hook commands.

   send-hook [!]pattern command
          When  composing a message matching pattern, command is executed.
          When multiple send-hooks match, they are executed in  the  order
          in which they occur in the configuration file.

   send2-hook [!]pattern command
          Whenever  a  message  matching  pattern  is  changed  (either by
          editing it or by using the compose menu), command  is  executed.
          When  multiple send2-hooks match, they are executed in the order
          in  which  they  occur  in  the  configuration  file.   Possible
          applications  include  setting  the  $sendmail  variable  when a
          message's from header is changed.

          send2-hook execution is not triggered by  use  of  enter-command
          from the compose menu.

   reply-hook [!]pattern command
          When   replying  to  a  message  matching  pattern,  command  is
          executed.  When multiple reply-hooks match, they are executed in
          the order in which they occur in the configuration file, but all
          reply-hooks  are  matched  and   executed   before   send-hooks,
          regardless of their order in the configuration file.

   crypt-hook regexp key-id
          The  crypt-hook  command  provides  a  method  by  which you can
          specify the ID of the public key  to  be  used  when  encrypting
          messages  to a certain recipient.  The meaning of "key ID" is to
          be taken broadly: This can be  a  different  e-mail  address,  a
          numerical  key ID, or even just an arbitrary search string.  You
          may use multiple crypt-hooks  with  the  same  regexp;  multiple
          matching crypt-hooks result in the use of multiple key-ids for a
          recipient.

   open-hook regexp "command"
   close-hook regexp "command"
   append-hook regexp "command"

          These commands provide a way to handle compressed  folders.  The
          given  regexp  specifies  which  folders are taken as compressed
          (e.g.  "\\.gz$"). The commands tell Mutt  how  to  uncompress  a
          folder  (open-hook),  compress a folder (close-hook) or append a
          compressed  mail  to  a  compressed  folder  (append-hook).  The
          command  string  is  the  printf(3)  like  format string, and it
          should accept two parameters: %f, which  is  replaced  with  the
          (compressed) folder name, and %t which is replaced with the name
          of the temporary folder to which to write.

   push string
          This command adds the named string to the keyboard buffer.

   set [no|inv|&|?]variable[=value] [ ... ]
   toggle variable [ ... ]
   unset variable [ ... ]
   reset variable [ ... ]

          These commands are used  to  set  and  manipulate  configuration
          variables.

          Mutt  knows  four  basic  types  of  variables: boolean, number,
          string and quadoption.  Boolean variables  can  be  set  (true),
          unset  (false),  or  toggled. Number variables can be assigned a
          positive integer value.

          String variables consist of any number of printable  characters.
          Strings  must  be  enclosed  in quotes if they contain spaces or
          tabs.  You may also use the "C" escape sequences \n and  \t  for
          newline and tab, respectively.

          Quadoption  variables  are  used to control whether or not to be
          prompted for certain actions, or to specify a default action.  A
          value   of   yes  will  cause  the  action  to  be  carried  out
          automatically as if  you  had  answered  yes  to  the  question.
          Similarly, a value of no will cause the the action to be carried
          out as if you had answered "no." A value of ask-yes will cause a
          prompt  with a default answer of "yes" and ask-no will provide a
          default answer of "no."

          The reset command resets all given variables to the compile time
          defaults.   If you reset the special variable all, all variables
          will reset to their compile time defaults.

   source filename
          The given file will be evaluated as a configuration file.

   spam pattern format
   nospam pattern

          These commands define spam-detection patterns from external spam
          filters,  so  that  mutt  can  sort, limit, and search on ``spam
          tags'' or ``spam attributes'', or display them in the index. See
          the Mutt manual for details.

   unhook [ *  | hook-type ]
          This command will remove all hooks of a given type, or all hooks
          when "*" is used as an argument.  hook-type can be  any  of  the
          -hook commands documented above.

   mailto_allow header-field [ ... ]
   unmailto_allow [ * | header-field ... ]

          These  commands  allow  the  user  to modify the list of allowed
          header fields in a mailto: URL that Mutt will include in the the
          generated  message.   By  default the list contains only subject
          and body, as specified by RFC2368.

PATTERNS

   In various places with mutt, including some of the above mentioned hook
   commands, you can specify patterns to match messages.

   Constructing Patterns
   A  simple  pattern  consists  of  an operator of the form "~character",
   possibly followed by a parameter against  which  mutt  is  supposed  to
   match  the object specified by this operator.  For some characters, the
   ~ may be replaced by another character to alter  the  behavior  of  the
   match.  These are described in the list of operators, below.

   With  some  of  these  operators,  the object to be matched consists of
   several e-mail addresses.  In these cases, the object is matched if  at
   least  one  of  these  e-mail  addresses matches. You can prepend a hat
   ("^") character to such a pattern to indicate that all  addresses  must
   match in order to match the object.

   You  can  construct  complex patterns by combining simple patterns with
   logical operators.  Logical AND is specified  by  simply  concatenating
   two  simple patterns, for instance "~C mutt-dev ~s bug".  Logical OR is
   specified by inserting a vertical bar ("|") between two  patterns,  for
   instance  "~C  mutt-dev  |  ~s  bug".   Additionally,  you can negate a
   pattern by prepending a bang ("!") character.   For  logical  grouping,
   use braces ("()"). Example: "!(~t mutt|~c mutt) ~f elkins".

   Simple Patterns
   Mutt understands the following simple patterns:

   ~A          all messages
   ~b EXPR     messages which contain EXPR in the message body.
   =b STRING   messages  which contain STRING in the message body. If IMAP
               is enabled, searches for STRING on the server, rather  than
               downloading each message and searching it locally.
   ~B EXPR     messages which contain EXPR in the whole message.
   ~c EXPR     messages carbon-copied to EXPR
   %c GROUP    messages carbon-copied to any member of GROUP
   ~C EXPR     messages either to: or cc: EXPR
   %C GROUP    messages either to: or cc: to any member of GROUP
   ~d MIN-MAX  messages with "date-sent" in a Date range
   ~D          deleted messages
   ~e EXPR     messages which contain EXPR in the "Sender" field
   %e GROUP    messages  which  contain  a member of GROUP in the "Sender"
               field
   ~E          expired messages
   ~f EXPR     messages originating from EXPR
   %f GROUP    messages originating from any member of GROUP
   ~F          flagged messages
   ~g          PGP signed messages
   ~G          PGP encrypted messages
   ~h EXPR     messages which contain EXPR in the message header
   ~H EXPR     messages with spam tags matching EXPR
   ~i EXPR     messages which match EXPR in the "Message-ID" field
   ~k          messages containing PGP key material
   ~l          messages addressed to a  known  mailing  list  (defined  by
               either subscribe or list)
   ~L EXPR     messages either originated or received by EXPR
   %L GROUP    messages  either  originated  or  received by any member of
               GROUP
   ~m MIN-MAX  message in the range MIN to MAX
   ~n MIN-MAX  messages with a score in the range MIN to MAX
   ~N          new messages
   ~O          old messages
   ~p          messages addressed to you (as defined by alternates)
   ~P          messages from you (as defined by alternates)
   ~Q          messages which have been replied to
   ~r MIN-MAX  messages with "date-received" in a Date range
   ~R          read messages
   ~s EXPR     messages having EXPR in the "Subject" field.
   ~S          superseded messages
   ~t EXPR     messages addressed to EXPR
   ~T          tagged messages
   ~u          messages addressed to a subscribed mailing list (defined by
               subscribe commands)
   ~U          unread messages
   ~v          message is part of a collapsed thread.
   ~V          cryptographically verified messages
   ~x EXPR     messages  which  contain  EXPR  in the "References" or "In-
               Reply-To" field
   ~X MIN-MAX  messages with MIN - MAX attachments
   ~y EXPR     messages which contain EXPR in the "X-Label" field
   ~z MIN-MAX  messages with a size in the range MIN to MAX
   ~=          duplicated messages (see $duplicate_threads)
   ~$          unreferenced message (requires threaded view)
   ~(PATTERN)  messages in threads containing messages matching a  certain
               pattern,  e.g.  all  threads  containing messages from you:
               ~(~P)

   In the above, EXPR is a regular expression.

   With the ~d, ~m, ~n, ~r, ~X, and ~z operators,  you  can  also  specify
   ranges in the forms <MAX, >MIN, MIN-, and -MAX.

   With  the  ~z operator, the suffixes "K" and "M" are allowed to specify
   kilobyte and megabyte respectively.

   Matching dates
   The ~d and ~r operators are  used  to  match  date  ranges,  which  are
   interpreted to be given in your local time zone.

   A  date  is  of  the  form DD[/MM[/[cc]YY]], that is, a two-digit date,
   optionally followed by a two-digit month, optionally followed by a year
   specifications.  Omitted fields default to the current month and year.

   Mutt  understands  either  two or four digit year specifications.  When
   given a two-digit year, mutt will interpret  values  less  than  70  as
   lying in the 21st century (i.e., "38" means 2038 and not 1938, and "00"
   is interpreted as 2000), and values greater than  or  equal  to  70  as
   lying in the 20th century.

   Note  that  this  behavior  is Y2K compliant, but that mutt does have a
   Y2.07K problem.

   If a date range consists of a single date,  the  operator  in  question
   will  match  that  precise  date.  If the date range consists of a dash
   ("-"), followed by a date, this range will match any date before and up
   to  the  date  given.  Similarly, a date followed by a dash matches the
   date given and any later point of time.   Two  dates,  separated  by  a
   dash, match any date which lies in the given range of time.

   You  can  also  modify  any absolute date by giving an error range.  An
   error range consists of one of the characters +, -, *,  followed  by  a
   positive  number, followed by one of the unit characters y, m, w, or d,
   specifying a unit of years, months, weeks, or days.   +  increases  the
   maximum  date  matched  by  the given interval of time, - decreases the
   minimum date matched by the given interval of time, and * increases the
   maximum  date  and  decreases  the  minimum  date  matched by the given
   interval of time.  It is possible to give multiple error margins, which
   cumulate.  Example: 1/1/2001-1w+2w*3d

   You  can  also specify offsets relative to the current date.  An offset
   is specified as one of the characters <, >, =, followed by  a  positive
   number,  followed  by  one  of  the  unit  characters y, m, w, or d.  >
   matches dates which are older than the specified  amount  of  time,  an
   offset  which  begins with the character < matches dates which are more
   recent than the specified amount of time, and an  offset  which  begins
   with  the  character  =  matches points of time which are precisely the
   given amount of time ago.

CONFIGURATION VARIABLES

   abort_noattach
          Type: quadoption
          Default: no

          If set to yes, when composing messages  containing  the  regular
          expression specified by attach_keyword and no attachments ** are
          given, composition will be aborted. If set to no,  composing  **
          messages as such will never be aborted.

          Example:

          set attach_keyword = "\\<attach(|ed|ments?)\\>"

   abort_nosubject
          Type: quadoption
          Default: ask-yes

          If  set  to yes, when composing messages and no subject is given
          at the subject prompt, composition will be aborted.  If  set  to
          no,  composing  messages  with  no  subject given at the subject
          prompt will never be aborted.

   abort_unmodified
          Type: quadoption
          Default: yes

          If set  to  yes,  composition  will  automatically  abort  after
          editing  the  message  body  if  no changes are made to the file
          (this check only happens after the  first  edit  of  the  file).
          When set to no, composition will never be aborted.

   alias_file
          Type: path
          Default: "~/.muttrc"

          The  default  file  in  which  to  save  aliases  created by the
          <create-alias> function. Entries added to this file are  encoded
          in  the  character set specified by $config_charset if it is set
          or the current character set otherwise.

          Note: Mutt will not automatically source  this  file;  you  must
          explicitly  use  the  "source"  command for it to be executed in
          case this option points to a dedicated alias file.

          The default for this option is the currently used  muttrc  file,
          or "~/.muttrc" if no user muttrc was found.

   alias_format
          Type: string
          Default: "%4n %2f %t %-10a   %r"

          Specifies the format of the data displayed for the "alias" menu.
          The following printf(3)-style sequences are available:
          %a     alias name
          %f     flags - currently, a "d" for an alias marked for deletion
          %n     index number
          %r     address which alias expands to
          %t     character which indicates if  the  alias  is  tagged  for
                 inclusion

   allow_8bit
          Type: boolean
          Default: yes

          Controls  whether  8-bit data is converted to 7-bit using either
          Quoted- Printable or Base64 encoding when sending mail.

   allow_ansi
          Type: boolean
          Default: no

          Controls whether ANSI color codes in messages (and color tags in
          rich  text messages) are to be interpreted.  Messages containing
          these codes are rare, but if this option is set, their text will
          be  colored  accordingly. Note that this may override your color
          choices, and even present a security problem,  since  a  message
          could include a line like

          [-- PGP output follows ...

          and  give  it  the same color as your attachment color (see also
          $crypt_timestamp).

   arrow_cursor
          Type: boolean
          Default: no

          When set, an arrow ("->") will be used to indicate  the  current
          entry  in menus instead of highlighting the whole line.  On slow
          network or modem links this will make  response  faster  because
          there  is  less that has to be redrawn on the screen when moving
          to the next or previous entries in the menu.

   ascii_chars
          Type: boolean
          Default: no

          If set, Mutt will use plain  ASCII  characters  when  displaying
          thread   and  attachment  trees,  instead  of  the  default  ACS
          characters.

   askbcc
          Type: boolean
          Default: no

          If  set,  Mutt  will  prompt  you  for  blind-carbon-copy  (Bcc)
          recipients before editing an outgoing message.

   askcc
          Type: boolean
          Default: no

          If  set,  Mutt  will  prompt you for carbon-copy (Cc) recipients
          before editing the body of an outgoing message.

   ask_follow_up
          Type: boolean
          Default: no

          If set, Mutt will prompt you for follow-up groups before editing
          the body of an outgoing message.

   ask_x_comment_to
          Type: boolean
          Default: no

          If  set,  Mutt  will  prompt  you  for x-comment-to field before
          editing the body of an outgoing message.

   assumed_charset
          Type: string
          Default: ""

          This variable is a colon-separated list  of  character  encoding
          schemes  for  messages  without  character  encoding indication.
          Header field values and message body content  without  character
          encoding  indication  would  be assumed that they are written in
          one of this list.  By default, all the header fields and message
          body  without  any  charset  indication  are  assumed  to  be in
          "us-ascii".

          For example, Japanese users might prefer this:

          set assumed_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

          However, only the first content is valid for the message body.

   attach_charset
          Type: string
          Default: ""

          This variable is a colon-separated list  of  character  encoding
          schemes  for  text  file  attachments. Mutt uses this setting to
          guess which encoding files being  attached  are  encoded  in  to
          convert them to a proper character set given in $send_charset.

          If  unset,  the  value  of  $charset  will be used instead.  For
          example, the following configuration  would  work  for  Japanese
          text handling:

          set attach_charset="iso-2022-jp:euc-jp:shift_jis:utf-8"

          Note:  for  Japanese users, "iso-2022-*" must be put at the head
          of the value as shown above if included.

   attach_format
          Type: string
          Default: "%u%D%I %t%4n %T%.40d%> [%.7m/%.10M, %.6e%?C?, %C?, %s] "

          This variable describes the format  of  the  "attachment"  menu.
          The following printf(3)-style sequences are understood:
          %C     charset
          %c     requires charset conversion ("n" or "c")
          %D     deleted flag
          %d     description
          %e     MIME content-transfer-encoding
          %F     filename for content-disposition header
          %f     filename
          %I     disposition ("I" for inline, "A" for attachment)
          %m     major MIME type
          %M     MIME subtype
          %n     attachment number
          %Q     "Q", if MIME part qualifies for attachment counting
          %s     size
          %t     tagged flag
          %T     graphic tree characters
          %u     unlink (=to delete) flag
          %X     number  of  qualifying  MIME  parts  in this part and its
                 children  (please  see  the  "attachments"  section   for
                 possible speed effects)
          %>X    right  justify  the  rest  of  the  string  and  pad with
                 character "X"
          %|X    pad to the end of the line with character "X"
          %*X    soft-fill with character "X" as pad

          For  an  explanation  of  "soft-fill",  see  the   $index_format
          documentation.

   attach_keyword
          Type: regular expression
          Default: "\<(attach|attached|attachments?)\>"

          If abort_noattach is not set to no, then the body of the message
          will be scanned for this regular expression, and if  found,  you
          will be prompted if there are no attachments.

   attach_sep
          Type: string
          Default: "\n"

          The separator to add between attachments when operating (saving,
          printing, piping, etc) on a list of tagged attachments.

   attach_split
          Type: boolean
          Default: yes

          If this variable is unset,  when  operating  (saving,  printing,
          piping,  etc)  on  a  list  of  tagged  attachments,  Mutt  will
          concatenate the attachments and will operate on them as a single
          attachment.  The  $attach_sep  separator  is  added  after  each
          attachment. When set, Mutt will operate on the  attachments  one
          by one.

   attribution
          Type: string
          Default: "On %d, %n wrote:"

          This  is  the  string that will precede a message which has been
          included  in  a  reply.   For  a   full   listing   of   defined
          printf(3)-like sequences see the section on $index_format.

   attribution_locale
          Type: string
          Default: ""

          The   locale   used  by  strftime(3)  to  format  dates  in  the
          attribution string.  Legal values are the  strings  your  system
          accepts for the locale environment variable $LC_TIME.

          This  variable  is  to  allow  the attribution date format to be
          customized by recipient or folder using hooks.  By default, Mutt
          will  use  your  locale  environment, so there is no need to set
          this except to override that default.

   auto_tag
          Type: boolean
          Default: no

          When set, functions in the index menu  which  affect  a  message
          will be applied to all tagged messages (if there are any).  When
          unset, you must first use the <tag-prefix>  function  (bound  to
          ";"  by  default)  to make the next function apply to all tagged
          messages.

   autoedit
          Type: boolean
          Default: no

          When set along with $edit_headers, Mutt will  skip  the  initial
          send-menu  (prompting  for subject and recipients) and allow you
          to immediately begin editing the  body  of  your  message.   The
          send-menu  may  still be accessed once you have finished editing
          the body of your message.

          Note: when this option is set, you cannot  use  send-hooks  that
          depend  on  the  recipients  when  composing  a  new (non-reply)
          message, as the initial list of recipients is empty.

          Also see $fast_reply.

   beep
          Type: boolean
          Default: yes

          When this variable is set, mutt will beep when an error occurs.

   beep_new
          Type: boolean
          Default: no

          When this variable is set, mutt will beep whenever it  prints  a
          message  notifying  you of new mail.  This is independent of the
          setting of the $beep variable.

   bounce
          Type: quadoption
          Default: ask-yes

          Controls whether you will be asked to confirm bouncing messages.
          If  set  to  yes  you  don't  get  asked if you want to bounce a
          message. Setting this variable to no is  not  generally  useful,
          and  thus  not  recommended,  because  you  are unable to bounce
          messages.

   bounce_delivered
          Type: boolean
          Default: yes

          When this  variable  is  set,  mutt  will  include  Delivered-To
          headers when bouncing messages.  Postfix users may wish to unset
          this variable.

          Note: On Debian systems, this option  is  unset  by  default  in
          /etc/Muttrc.

   braille_friendly
          Type: boolean
          Default: no

          When  this  variable  is  set, mutt will place the cursor at the
          beginning  of  the  current  line  in  menus,  even   when   the
          $arrow_cursor  variable  is  unset,  making  it easier for blind
          persons using Braille  displays  to  follow  these  menus.   The
          option  is  unset by default because many visual terminals don't
          permit making the cursor invisible.

   catchup_newsgroup
          Type: quadoption
          Default: ask-yes

          If this  variable  is  set,  Mutt  will  mark  all  articles  in
          newsgroup   as   read  when  you  quit  the  newsgroup  (catchup
          newsgroup).

   certificate_file
          Type: path
          Default: "~/.mutt_certificates"

          This variable specifies the  file  where  the  certificates  you
          trust are saved. When an unknown certificate is encountered, you
          are asked if you accept  it  or  not.  If  you  accept  it,  the
          certificate   can  also  be  saved  in  this  file  and  further
          connections are automatically accepted.

          You can also manually add CA  certificates  in  this  file.  Any
          server   certificate  that  is  signed  with  one  of  these  CA
          certificates is also automatically accepted.

          Example:

          set certificate_file=~/.mutt/certificates

   charset
          Type: string
          Default: ""

          Character set your terminal uses to display  and  enter  textual
          data.  It is also the fallback for $send_charset.

          Upon  startup  Mutt  tries to derive this value from environment
          variables such as $LC_CTYPE or $LANG.

          Note: It should only be set in case Mutt isn't able to determine
          the character set used correctly.

   check_mbox_size
          Type: boolean
          Default: no

          When  this  variable  is  set, mutt will use file size attribute
          instead of access time when checking for new mail  in  mbox  and
          mmdf folders.

          This  variable  is  unset  by default and should only be enabled
          when new mail detection for these folder types is unreliable  or
          doesn't work.

          Note  that  enabling  this  variable  should  happen  before any
          "mailboxes" directives occur in  configuration  files  regarding
          mbox or mmdf folders because mutt needs to determine the initial
          new mail status of such a mailbox by performing a  fast  mailbox
          scan  when  it  is  defined.   Afterwards the new mail status is
          tracked by file size changes.

   check_new
          Type: boolean
          Default: yes

          Note: this option only affects maildir and MH style mailboxes.

          When set, Mutt will check  for  new  mail  delivered  while  the
          mailbox  is  open.  Especially with MH mailboxes, this operation
          can  take  quite  some  time  since  it  involves  scanning  the
          directory  and  checking each file to see if it has already been
          looked at.  If this variable is unset, no check for new mail  is
          performed while the mailbox is open.

   collapse_unread
          Type: boolean
          Default: yes

          When  unset,  Mutt will not collapse a thread if it contains any
          unread messages.

   compose_format
          Type: string
          Default: "-- NeoMutt: Compose  [Approx. msg size: %l   Atts: %a]%>-"

          Controls  the  format  of  the  status  line  displayed  in  the
          "compose"  menu.   This string is similar to $status_format, but
          has its own set of printf(3)-like sequences:
          %a     total number of attachments
          %h     local hostname
          %l     approximate size (in bytes) of the current message
          %v     Mutt version string

          See the text  describing  the  $status_format  option  for  more
          information on how to set $compose_format.

   config_charset
          Type: string
          Default: ""

          When  defined,  Mutt  will recode commands in rc files from this
          encoding to the current character set as specified  by  $charset
          and  aliases  written  to $alias_file from the current character
          set.

          Please note that if setting $charset  it  must  be  done  before
          setting $config_charset.

          Recoding  should  be  avoided  as  it  may  render unconvertable
          characters as question marks which can lead  to  undesired  side
          effects (for example in regular expressions).

   confirmappend
          Type: boolean
          Default: yes

          When  set,  Mutt  will  prompt  for  confirmation when appending
          messages to an existing mailbox.

   confirmcreate
          Type: boolean
          Default: yes

          When set, Mutt will prompt for confirmation when saving messages
          to a mailbox which does not yet exist before creating it.

   connect_timeout
          Type: number
          Default: 30

          Causes  Mutt  to  timeout a network connection (for IMAP, POP or
          SMTP) after this many seconds if the connection is not  able  to
          be   established.    A   negative  value  causes  Mutt  to  wait
          indefinitely for the connection attempt to succeed.

   content_type
          Type: string
          Default: "text/plain"

          Sets the default Content-Type for the  body  of  newly  composed
          messages.

   copy
          Type: quadoption
          Default: yes

          This  variable  controls  whether or not copies of your outgoing
          messages will be saved for later references.  Also see  $record,
          $save_name, $force_name and "fcc-hook".

   crypt_autoencrypt
          Type: boolean
          Default: no

          Setting  this  variable will cause Mutt to always attempt to PGP
          encrypt outgoing messages.  This  is  probably  only  useful  in
          connection  to the "send-hook" command.  It can be overridden by
          use of the pgp menu, when encryption is not required or  signing
          is requested as well.  If $smime_is_default is set, then OpenSSL
          is used instead to create S/MIME messages and  settings  can  be
          overridden by use of the smime menu instead.  (Crypto only)

   crypt_autopgp
          Type: boolean
          Default: yes

          This  variable  controls  whether  or not mutt may automatically
          enable  PGP   encryption/signing   for   messages.    See   also
          $crypt_autoencrypt,     $crypt_replyencrypt,    $crypt_autosign,
          $crypt_replysign and $smime_is_default.

   crypt_autosign
          Type: boolean
          Default: no

          Setting this variable will  cause  Mutt  to  always  attempt  to
          cryptographically   sign   outgoing   messages.    This  can  be
          overridden by use of the pgp menu, when signing is not  required
          or encryption is requested as well. If $smime_is_default is set,
          then OpenSSL is used  instead  to  create  S/MIME  messages  and
          settings  can  be overridden by use of the smime menu instead of
          the pgp menu.  (Crypto only)

   crypt_autosmime
          Type: boolean
          Default: yes

          This variable controls whether or  not  mutt  may  automatically
          enable   S/MIME   encryption/signing   for  messages.  See  also
          $crypt_autoencrypt,    $crypt_replyencrypt,     $crypt_autosign,
          $crypt_replysign and $smime_is_default.

   crypt_confirmhook
          Type: boolean
          Default: yes

          If  set, then you will be prompted for confirmation of keys when
          using the crypt-hook command.  If unset,  no  such  confirmation
          prompt  will be presented.  This is generally considered unsafe,
          especially where typos are concerned.

   crypt_opportunistic_encrypt
          Type: boolean
          Default: no

          Setting this variable will cause Mutt  to  automatically  enable
          and  disable  encryption, based on whether all message recipient
          keys can be located by Mutt.

          When this option is enabled, Mutt will enable/disable encryption
          each   time   the   TO,  CC,  and  BCC  lists  are  edited.   If
          $edit_headers is set, Mutt will also do so each time the message
          is edited.

          While    this    is    set,   encryption   can't   be   manually
          enabled/disabled.  The pgp or smime menus provide a selection to
          temporarily disable this option for the current message.

          If  $crypt_autoencrypt  or $crypt_replyencrypt enable encryption
          for a message, this option will be disabled  for  that  message.
          It  can  be  manually  re-enabled  in  the  pgp  or smime menus.
          (Crypto only)

   crypt_replyencrypt
          Type: boolean
          Default: yes

          If set, automatically PGP or OpenSSL encrypt replies to messages
          which are encrypted.  (Crypto only)

   crypt_replysign
          Type: boolean
          Default: no

          If  set,  automatically  PGP or OpenSSL sign replies to messages
          which are signed.

          Note: this does not work on  messages  that  are  encrypted  and
          signed!  (Crypto only)

   crypt_replysignencrypted
          Type: boolean
          Default: no

          If  set,  automatically  PGP or OpenSSL sign replies to messages
          which are  encrypted.  This  makes  sense  in  combination  with
          $crypt_replyencrypt,  because it allows you to sign all messages
          which  are  automatically  encrypted.   This  works  around  the
          problem noted in $crypt_replysign, that mutt is not able to find
          out whether an encrypted message is also signed.  (Crypto only)

   pgp_encrypt_self
          Type: quadoption
          Default: no

          Encrypt the message to $pgp_sign_as too.  (PGP only)

   crypt_timestamp
          Type: boolean
          Default: yes

          If set, mutt will include a time stamp in the lines  surrounding
          PGP  or S/MIME output, so spoofing such lines is more difficult.
          If you are using colors to mark these lines, and rely on  these,
          you may unset this setting.  (Crypto only)

   crypt_use_gpgme
          Type: boolean
          Default: no

          This  variable  controls  the  use  of  the GPGME-enabled crypto
          backends.  If it is set and Mutt was built with  gpgme  support,
          the  gpgme  code  for S/MIME and PGP will be used instead of the
          classic code.  Note that you need to set this option in .muttrc;
          it won't have any effect when used interactively.

          Note  that the GPGME backend does not support creating old-style
          inline (traditional)  PGP  encrypted  or  signed  messages  (see
          $pgp_autoinline).

   crypt_use_pka
          Type: boolean
          Default: no

          Controls       whether       mutt       uses       PKA      (see
          http://www.g10code.de/docs/pka-intro.de.pdf)  during   signature
          verification (only supported by the GPGME backend).

   crypt_verify_sig
          Type: quadoption
          Default: yes

          If yes, always attempt to verify PGP or S/MIME signatures.  If
          ask-*, ask whether or not to verify the signature.   If  no,
          never attempt to verify cryptographic signatures.  (Crypto only)

   date_format
          Type: string
          Default: "!%a, %b %d, %Y at %I:%M:%S%p %Z"

          This  variable  controls  the  format of the date printed by the
          "%d"  sequence  in  $index_format.   This  is  passed   to   the
          strftime(3)  function  to process the date, see the man page for
          the proper syntax.

          Unless the first character in the string is a  bang  ("!"),  the
          month  and  week day names are expanded according to the locale.
          If the first character in the string is  a  bang,  the  bang  is
          discarded,  and  the month and week day names in the rest of the
          string are expanded in the C locale (that is in US English).

   default_hook
          Type: string
          Default: "~f %s !~P | (~P ~C %s)"

          This variable controls how "message-hook", "reply-hook",  "send-
          hook",   "send2-hook",   "save-hook",  and  "fcc-hook"  will  be
          interpreted if they are specified with  only  a  simple  regexp,
          instead of a matching pattern.  The hooks are expanded when they
          are declared, so a hook will be  interpreted  according  to  the
          value of this variable at the time the hook is declared.

          The  default  value matches if the message is either from a user
          matching the regular expression given, or if it is from you  (if
          the  from  address matches "alternates") and is to or cc'ed to a
          user matching the given regular expression.

   delete
          Type: quadoption
          Default: ask-yes

          Controls whether or not messages are really deleted when closing
          or  synchronizing a mailbox.  If set to yes, messages marked for
          deleting will automatically be purged without prompting.  If set
          to no, messages marked for deletion will be kept in the mailbox.

   delete_untag
          Type: boolean
          Default: yes

          If  this  option  is  set, mutt will untag messages when marking
          them for deletion.  This  applies  when  you  either  explicitly
          delete a message, or when you save it to another folder.

   digest_collapse
          Type: boolean
          Default: yes

          If this option is set, mutt's received-attachments menu will not
          show the subparts of individual messages in a  multipart/digest.
          To see these subparts, press "v" on that menu.

   display_filter
          Type: path
          Default: ""

          When  set,  specifies a command used to filter messages.  When a
          message  is  viewed  it  is  passed   as   standard   input   to
          $display_filter,  and  the  filtered  message  is  read from the
          standard output.

   dotlock_program
          Type: path
          Default: "/usr/bin/mutt_dotlock"

          Contains the path of the mutt_dotlock(8) binary to  be  used  by
          mutt.

   dsn_notify
          Type: string
          Default: ""

          This   variable  sets  the  request  for  when  notification  is
          returned.  The string consists of a  comma  separated  list  (no
          spaces!)  of  one  or  more  of  the  following: never, to never
          request  notification,  failure,  to  request  notification   on
          transmission  failure,  delay, to be notified of message delays,
          success, to be notified of successful transmission.

          Example:

          set dsn_notify="failure,delay"

          Note: when using $sendmail for delivery, you should  not  enable
          this  unless you are either using Sendmail 8.8.x or greater or a
          MTA providing a sendmail(1)-compatible interface supporting  the
          -N   option   for   DSN.  For  SMTP  delivery,  DSN  support  is
          auto-detected so that it depends on the server whether DSN  will
          be used or not.

   dsn_return
          Type: string
          Default: ""

          This  variable  controls how much of your message is returned in
          DSN messages.  It may be set to either hdrs to return  just  the
          message header, or full to return the full message.

          Example:

          set dsn_return=hdrs

          Note:  when  using $sendmail for delivery, you should not enable
          this unless you are either using Sendmail 8.8.x or greater or  a
          MTA  providing a sendmail(1)-compatible interface supporting the
          -R  option  for  DSN.  For  SMTP  delivery,   DSN   support   is
          auto-detected  so that it depends on the server whether DSN will
          be used or not.

   duplicate_threads
          Type: boolean
          Default: yes

          This variable controls  whether  mutt,  when  $sort  is  set  to
          threads, threads messages with the same Message-Id together.  If
          it is set, it will indicate that it thinks they  are  duplicates
          of each other with an equals sign in the thread tree.

   edit_headers
          Type: boolean
          Default: no

          This  option  allows  you  to  edit  the header of your outgoing
          messages along with the body of your message.

          Note that changes made to the References: and Date: headers  are
          ignored for interoperability reasons.

   editor
          Type: path
          Default: ""

          This  variable  specifies  which  editor  is  used  by mutt.  It
          defaults to the value of the $VISUAL,  or  $EDITOR,  environment
          variable, or to the string "/usr/bin/editor" if neither of those
          are set.

          The $editor string may  contain  a  %s  escape,  which  will  be
          replaced by the name of the file to be edited.  If the %s escape
          does not appear in $editor, a space and the name  to  be  edited
          are appended.

          The resulting string is then executed by running

          sh -c 'string'

          where string is the expansion of $editor described above.

   encode_from
          Type: boolean
          Default: no

          When  set,  mutt will quoted-printable encode messages when they
          contain the string "From " (note  the  trailing  space)  in  the
          beginning  of  a  line.   This  is useful to avoid the tampering
          certain mail delivery and  transport  agents  tend  to  do  with
          messages  (in  order  to  prevent tools from misinterpreting the
          line as a mbox message separator).

   envelope_from_address
          Type: e-mail address
          Default: ""

          Manually sets the envelope sender for outgoing  messages.   This
          value is ignored if $use_envelope_from is unset.

   escape
          Type: string
          Default: "~"

          Escape character to use for functions in the built-in editor.

   fast_reply
          Type: boolean
          Default: no

          When  set,  the  initial  prompt  for recipients and subject are
          skipped when replying to messages, and the  initial  prompt  for
          subject is skipped when forwarding messages.

          Note: this variable has no effect when the $autoedit variable is
          set.

   fcc_attach
          Type: quadoption
          Default: yes

          This variable controls whether or not  attachments  on  outgoing
          messages are saved along with the main body of your message.

   fcc_clear
          Type: boolean
          Default: no

          When  this  variable is set, FCCs will be stored unencrypted and
          unsigned, even when  the  actual  message  is  encrypted  and/or
          signed.  (PGP only)

   flag_safe
          Type: boolean
          Default: no

          If set, flagged messages cannot be deleted.

   folder
          Type: path
          Default: "~/Mail"

          Specifies  the default location of your mailboxes.  A "+" or "="
          at the beginning of a pathname will be expanded to the value  of
          this  variable.  Note that if you change this variable (from the
          default) value you need to make sure that the assignment  occurs
          before  you  use  "+"  or  "="  for  any  other  variables since
          expansion takes place when handling the "mailboxes" command.

   folder_format
          Type: string
          Default: "%2C %t %N %F %2l %-8.8u %-8.8g %8s %d %f"

          This variable allows you to customize the file  browser  display
          to   your   personal   taste.    This   string   is  similar  to
          $index_format, but has its own set of printf(3)-like sequences:
          %C     current file number
          %d     date/time folder was last modified
          %D     date/time folder was last modified using $date_format.
          %f     filename ("/" is appended  to  directory  names,  "@"  to
                 symbolic links and "*" to executable files)
          %F     file permissions
          %g     group name (or numeric gid, if missing)
          %l     number of hard links
          %m     number of messages in the mailbox *
          %n     number of unread messages in the mailbox *
          %N     N if mailbox has new mail, blank otherwise
          %s     size in bytes
          %t     "*" if the file is tagged, blank otherwise
          %u     owner name (or numeric uid, if missing)
          %>X    right  justify  the  rest  of  the  string  and  pad with
                 character "X"
          %|X    pad to the end of the line with character "X"
          %*X    soft-fill with character "X" as pad

          For  an  explanation  of  "soft-fill",  see  the   $index_format
          documentation.

          * = can be optionally printed if nonzero

          %m,  %n,  and %N only work for monitored mailboxes.  %m requires
          $mail_check_stats to be set.  %n requires  $mail_check_stats  to
          be set (except for IMAP mailboxes).

   followup_to
          Type: boolean
          Default: yes

          Controls  whether or not the "Mail-Followup-To:" header field is
          generated when sending mail.  When set, Mutt will generate  this
          field  when  you are replying to a known mailing list, specified
          with the "subscribe" or "lists" commands.

          This  field  has  two  purposes.   First,  preventing  you  from
          receiving duplicate copies of replies to messages which you send
          to mailing lists, and second, ensuring that you do get  a  reply
          separately for any messages sent to known lists to which you are
          not subscribed.

          The header will contain only the list's address  for  subscribed
          lists,  and both the list address and your own email address for
          unsubscribed lists.  Without this header, a group reply to  your
          message  sent to a subscribed list will be sent to both the list
          and your address, resulting in two copies of the same email  for
          you.

   followup_to_poster
          Type: quadoption
          Default: ask-yes

          If  this  variable is set and the keyword "poster" is present in
          Followup-To header,  follow-up  to  newsgroup  function  is  not
          permitted.   The  message will be mailed to the submitter of the
          message via mail.

   force_name
          Type: boolean
          Default: no

          This variable is similar to $save_name, except  that  Mutt  will
          store  a  copy  of  your outgoing message by the username of the
          address you are sending to even if that mailbox does not exist.

          Also see the $record variable.

   forward_decode
          Type: boolean
          Default: yes

          Controls the decoding of complex MIME messages  into  text/plain
          when  forwarding  a message.  The message header is also RFC2047
          decoded.  This variable is only used, if $mime_forward is unset,
          otherwise $mime_forward_decode is used instead.

   forward_decrypt
          Type: boolean
          Default: yes

          Controls  the  handling  of encrypted messages when forwarding a
          message.  When set, the outer layer of  encryption  is  stripped
          off.   This  variable  is  only used if $mime_forward is set and
          $mime_forward_decode is unset.  (PGP only)

   forward_edit
          Type: quadoption
          Default: yes

          This  quadoption  controls  whether   or   not   the   user   is
          automatically  placed  in  the  editor when forwarding messages.
          For those who always want to forward with no modification, use a
          setting of "no".

   forward_format
          Type: string
          Default: "[%a: %s]"

          This  variable  controls  the  default subject when forwarding a
          message.  It uses the same format sequences as the $index_format
          variable.

   forward_quote
          Type: boolean
          Default: no

          When  set,  forwarded  messages included in the main body of the
          message (when $mime_forward  is  unset)  will  be  quoted  using
          $indent_string.

   forward_references
          Type: boolean
          Default: no

          When   set,   forwarded  messages  set  the  "In-Reply-To:"  and
          "References:" headers in the same way as normal  replies  would.
          Hence  the forwarded message becomes part of the original thread
          instead of starting a new one.

   from
          Type: e-mail address
          Default: ""

          When set, this variable contains a default from address.  It can
          be  overridden using "my_hdr" (including from a "send-hook") and
          $reverse_name.  This variable is ignored if $use_from is unset.

          This  setting  defaults  to  the  contents  of  the  environment
          variable $EMAIL.

   gecos_mask
          Type: regular expression
          Default: "^[^,]*"

          A  regular expression used by mutt to parse the GECOS field of a
          password entry when expanding the alias.  The default value will
          return the string up to the first "," encountered.  If the GECOS
          field contains a string  like  "lastname,  firstname"  then  you
          should set it to ".*".

          This  can  be  useful  if  you  see  the following behavior: you
          address an e-mail to user ID "stevef" whose full name is  "Steve
          Franklin".     If   mutt   expands   "stevef"   to   ""Franklin"
          stevef@foo.bar" then you should set the $gecos_mask to a regular
          expression  that  will  match the whole name so mutt will expand
          "Franklin" to "Franklin, Steve".

   group_index_format
          Type: string
          Default: "%4C %M%N %5s  %-45.45f %d"

          This variable allows you  to  customize  the  newsgroup  browser
          display  to  your  personal  taste.   This  string is similar to
          "index_format", but has its own set of printf()-like sequences:
          %C     current newsgroup number
          %d     description of newsgroup (becomes from server)
          %f     newsgroup name
          %M     - if newsgroup not allowed for direct post (moderated for
                 example)
          %N     N if newsgroup is new, u if unsubscribed, blank otherwise
          %n     number of new articles in newsgroup
          %s     number of unread articles in newsgroup
          %>X    right  justify  the  rest  of  the  string  and  pad with
                 character "X"
          %|X    pad to the end of the line with character "X"

   hdrs
          Type: boolean
          Default: yes

          When unset, the header fields normally  added  by  the  "my_hdr"
          command  are  not  created.   This variable must be unset before
          composing a new message or replying in order to take effect.  If
          set,  the  user  defined  header  fields  are added to every new
          message.

   header
          Type: boolean
          Default: no

          When set, this variable causes Mutt to include the header of the
          message  you  are  replying  to into the edit buffer.  The $weed
          setting applies.

   header_cache
          Type: path
          Default: ""

          This variable points to the header cache database.  If  pointing
          to  a  directory  Mutt will contain a header cache database file
          per folder, if pointing to a file that file  will  be  a  single
          global header cache. By default it is unset so no header caching
          will be used.

          Header caching can greatly improve speed when opening POP,  IMAP
          MH or Maildir folders, see "caching" for details.

   header_cache_backend
          Type: -none-
          Default: 0

          This variable specifies the header cache backend.

   header_cache_compress
          Type: boolean
          Default: yes

          When mutt is compiled with qdbm, tokyocabinet or kyotocabinet as
          header  cache  backend,  this  option  determines  whether   the
          database  will  be  compressed.  Compression results in database
          files roughly being one fifth of the usual  diskspace,  but  the
          decompression can result in a slower opening of cached folder(s)
          which in general is still much faster than  opening  non  header
          cached folders.

   help
          Type: boolean
          Default: yes

          When  set,  help  lines  describing  the  bindings for the major
          functions provided by each menu are displayed on the first  line
          of the screen.

          Note:  The  binding  will  not  be  displayed  correctly  if the
          function is bound to a sequence rather than a single  keystroke.
          Also,  the  help line may not be updated if a binding is changed
          while Mutt is running.  Since this variable is  primarily  aimed
          at new users, neither of these should present a major problem.

   hidden_host
          Type: boolean
          Default: no

          When  set,  mutt  will  skip  the  host  name  part of $hostname
          variable  when  adding  the  domain  part  to  addresses.   This
          variable  does  not affect the generation of Message-IDs, and it
          will not lead to the cut-off of first-level domains.

   hide_limited
          Type: boolean
          Default: no

          When set, mutt will not show the presence of messages  that  are
          hidden by limiting, in the thread tree.

   hide_missing
          Type: boolean
          Default: yes

          When set, mutt will not show the presence of missing messages in
          the thread tree.

   hide_thread_subject
          Type: boolean
          Default: yes

          When set, mutt will not show the  subject  of  messages  in  the
          thread  tree  that  have  the  same  subject  as their parent or
          closest previously displayed sibling.

   hide_top_limited
          Type: boolean
          Default: no

          When set, mutt will not show the presence of messages  that  are
          hidden  by  limiting,  at the top of threads in the thread tree.
          Note that when $hide_limited is set, this option  will  have  no
          effect.

   hide_top_missing
          Type: boolean
          Default: yes

          When set, mutt will not show the presence of missing messages at
          the  top  of  threads  in  the  thread  tree.   Note  that  when
          $hide_missing is set, this option will have no effect.

   history
          Type: number
          Default: 10

          This   variable   controls   the  size  (in  number  of  strings
          remembered) of the  string  history  buffer  per  category.  The
          buffer is cleared each time the variable is set.

   history_file
          Type: path
          Default: "~/.mutthistory"

          The file in which Mutt will save its history.

   honor_disposition
          Type: boolean
          Default: no

          When  set,  Mutt will not display attachments with a disposition
          of "attachment" inline even if it could render the part to plain
          text.  These  MIME  parts can only be viewed from the attachment
          menu.

          If unset, Mutt will  render  all  MIME  parts  it  can  properly
          transform to plain text.

   honor_followup_to
          Type: quadoption
          Default: yes

          This  variable controls whether or not a Mail-Followup-To header
          is honored when group-replying to a message.

   hostname
          Type: string
          Default: ""

          Specifies the fully-qualified hostname of  the  system  mutt  is
          running  on  containing  the  host's  name and the DNS domain it
          belongs to. It is used as the domain part (after "@") for  local
          email addresses as well as Message-Id headers.

          Its  value  is  determined  at  startup  as  follows: the node's
          hostname is first determined  by  the  uname(3)  function.   The
          domain   is   then   looked  up  using  the  gethostname(2)  and
          getaddrinfo(3)  functions.   If  those  calls  are   unable   to
          determine  the domain, the full value returned by uname is used.
          Optionally, Mutt can be compiled with a  fixed  domain  name  in
          which case a detected one is not used.

          Also see $use_domain and $hidden_host.

          Note:  On  Debian  systems,  the  default  for  this variable is
          obtained from /etc/mailname when Mutt starts.

   idn_decode
          Type: boolean
          Default: yes

          When set, Mutt will show you international domain names decoded.
          Note:  You  can  use  IDNs  for addresses even if this is unset.
          This variable only affects decoding. (IDN only)

   idn_encode
          Type: boolean
          Default: yes

          When set, Mutt will encode international domain names using IDN.
          Unset this if your SMTP server can handle newer (RFC 6531) UTF-8
          encoded domains. (IDN only)

   ignore_linear_white_space
          Type: boolean
          Default: no

          This option replaces linear-white-space between encoded-word and
          text  to  a  single space to prevent the display of MIME-encoded
          "Subject:" field from being divided into multiple lines.

   ignore_list_reply_to
          Type: boolean
          Default: no

          Affects the behavior of the <reply> function  when  replying  to
          messages  from  mailing  lists (as defined by the "subscribe" or
          "lists" commands).  When set, if the "Reply-To:" field is set to
          the  same  value  as  the  "To:"  field,  Mutt  assumes that the
          "Reply-To:" field was  set  by  the  mailing  list  to  automate
          responses  to the list, and will ignore this field.  To direct a
          response to the mailing list when this option is  set,  use  the
          <list-reply>  function;  <group-reply>  will  reply  to both the
          sender and the list.

   imap_authenticators
          Type: string
          Default: ""

          This is a colon-delimited list of  authentication  methods  mutt
          may  attempt  to  use  to log in to an IMAP server, in the order
          mutt should try them.  Authentication methods are either "login"
          or  the right side of an IMAP "AUTH=xxx" capability string, e.g.
          "digest-md5",   "gssapi"   or   "cram-md5".   This   option   is
          case-insensitive.  If it's unset (the default) mutt will try all
          available methods, in order from most-secure to least-secure.

          Example:

          set imap_authenticators="gssapi:cram-md5:login"

          Note: Mutt will only fall back to other  authentication  methods
          if  the  previous  methods  are  unavailable.  If  a  method  is
          available but authentication fails, mutt will not connect to the
          IMAP server.

   imap_check_subscribed
          Type: boolean
          Default: no

          When  set,  mutt  will  fetch the set of subscribed folders from
          your server on connection, and add them to the set of  mailboxes
          it  polls  for  new  mail  just  as if you had issued individual
          "mailboxes" commands.

   imap_delim_chars
          Type: string
          Default: "/."

          This contains the list of characters which  you  would  like  to
          treat  as  folder  separators  for  displaying  IMAP  paths.  In
          particular it helps in using the "=" shortcut  for  your  folder
          variable.

   imap_headers
          Type: string
          Default: ""

          Mutt  requests  these  header  fields in addition to the default
          headers   ("Date:",   "From:",   "Subject:",    "To:",    "Cc:",
          "Message-Id:",          "References:",          "Content-Type:",
          "Content-Description:", "In-Reply-To:",  "Reply-To:",  "Lines:",
          "List-Post:",  "X-Label:")  from  IMAP servers before displaying
          the index menu. You may  want  to  add  more  headers  for  spam
          detection.

          Note:  This is a space separated list, items should be uppercase
          and not contain the colon, e.g. "X-BOGOSITY  X-SPAM-STATUS"  for
          the "X-Bogosity:" and "X-Spam-Status:" header fields.

   imap_idle
          Type: boolean
          Default: no

          When  set,  mutt  will attempt to use the IMAP IDLE extension to
          check for new mail in the current mailbox. Some servers (dovecot
          was  the  inspiration  for  this  option)  react badly to mutt's
          implementation.  If  your  connection   seems   to   freeze   up
          periodically, try unsetting this.

   imap_keepalive
          Type: number
          Default: 300

          This  variable  specifies  the maximum amount of time in seconds
          that mutt will wait before polling  open  IMAP  connections,  to
          prevent  the  server  from closing them before mutt has finished
          with them. The default is well within the RFC-specified  minimum
          amount  of  time  (30  minutes) before a server is allowed to do
          this, but in practice the RFC does get violated  every  now  and
          then.   Reduce   this   number  if  you  find  yourself  getting
          disconnected from your IMAP server due to inactivity.

   imap_list_subscribed
          Type: boolean
          Default: no

          This variable configures whether IMAP folder browsing will  look
          for only subscribed folders or all folders.  This can be toggled
          in the IMAP browser with the <toggle-subscribed> function.

   imap_login
          Type: string
          Default: ""

          Your login name on the IMAP server.

          This variable defaults to the value of $imap_user.

   imap_pass
          Type: string
          Default: ""

          Specifies the password for your IMAP account.   If  unset,  Mutt
          will   prompt   you  for  your  password  when  you  invoke  the
          <imap-fetch-mail> function or try to open an IMAP folder.

          Warning: you should only use this  option  when  you  are  on  a
          fairly  secure  machine,  because  the  superuser  can read your
          muttrc even if you are the only one who can read the file.

   imap_passive
          Type: boolean
          Default: yes

          When set, mutt will not open new IMAP connections to  check  for
          new  mail.  Mutt will only check for new mail over existing IMAP
          connections.  This is useful if you don't want to be prompted to
          user/password  pairs  on  mutt  invocation,  or  if  opening the
          connection is slow.

   imap_peek
          Type: boolean
          Default: yes

          When set, mutt will avoid implicitly marking your mail  as  read
          whenever  you fetch a message from the server. This is generally
          a good thing, but can  make  closing  an  IMAP  folder  somewhat
          slower. This option exists to appease speed freaks.

   imap_pipeline_depth
          Type: number
          Default: 15

          Controls  the  number  of  IMAP  commands  that may be queued up
          before they are sent to the server. A  deeper  pipeline  reduces
          the  amount  of time mutt must wait for the server, and can make
          IMAP servers feel much more  responsive.  But  not  all  servers
          correctly handle pipelined commands, so if you have problems you
          might want to try setting this variable to 0.

          Note:  Changes  to  this  variable  have  no  effect   on   open
          connections.

   imap_servernoise
          Type: boolean
          Default: yes

          When  set,  mutt  will  display  warning  messages from the IMAP
          server  as  error  messages.  Since  these  messages  are  often
          harmless,  or  generated  due  to  configuration problems on the
          server which are out of  the  users'  hands,  you  may  wish  to
          suppress them at some point.

   imap_user
          Type: string
          Default: ""

          The name of the user whose mail you intend to access on the IMAP
          server.

          This variable defaults to your user name on the local machine.

   implicit_autoview
          Type: boolean
          Default: no

          If set to "yes", mutt will look for a  mailcap  entry  with  the
          "copiousoutput"  flag  set  for every MIME attachment it doesn't
          have an internal viewer defined for.  If such an entry is found,
          mutt  will  use  the viewer defined in that entry to convert the
          body part to text form. MIME attachments with 'text' types, with
          the  only  exception  of  text/html,  are excluded: they will be
          shown as they are unless auto_view is specified.

   include
          Type: quadoption
          Default: ask-yes

          Controls whether or  not  a  copy  of  the  message(s)  you  are
          replying to is included in your reply.

   include_onlyfirst
          Type: boolean
          Default: no

          Controls  whether or not Mutt includes only the first attachment
          of the message you are replying.

   indent_string
          Type: string
          Default: "> "

          Specifies the string to prepend to each line of text quoted in a
          message  to which you are replying.  You are strongly encouraged
          not to change this value,  as  it  tends  to  agitate  the  more
          fanatical netizens.

          The  value  of  this  option  is ignored if $text_flowed is set,
          because  the  quoting  mechanism   is   strictly   defined   for
          format=flowed.

          This  option  is  a format string, please see the description of
          $index_format for supported printf(3)-style sequences.

   index_format
          Type: string
          Default: "%4C %Z %{%b %d} %-15.15L (%?l?%4l&%4c?) %s"

          This variable allows you to customize the message index  display
          to your personal taste.

          "Format  strings"  are  similar  to  the  strings  used in the C
          function printf(3) to format output (see the man page  for  more
          details).   For  an  explanation  of  the  %? construct, see the
          status_format description.  The following sequences are  defined
          in Mutt:
          %a     address of the author
          %A     reply-to  address  (if  present;  otherwise:  address  of
                 author)
          %b     filename of the original message folder (think mailbox)
          %B     the list to which the letter was sent, or else the folder
                 name (%b).
          %c     number of characters (bytes) in the message
          %C     current message number
          %d     date  and  time of the message in the format specified by
                 $date_format converted to sender's time zone
          %D     date and time of the message in the format  specified  by
                 $date_format converted to the local time zone
          %e     current message number in thread
          %E     number of messages in current thread
          %f     sender   (address   +   real   name),   either  From:  or
                 Return-Path:
          %F     author name, or recipient name if the message is from you
          %g     newsgroup name (if compiled with NNTP support)
          %g     message labels (e.g. notmuch tags)
          %H     spam attribute(s) of this message
          %i     message-id of the current message
          %l     number of lines  in  the  message  (does  not  work  with
                 maildir, mh, and possibly IMAP folders)
          %L     If  an address in the "To:" or "Cc:" header field matches
                 an address defined by the users "subscribe" command, this
                 displays "To <list-name>", otherwise the same as %F.
          %m     total number of message in the mailbox
          %M     number of hidden messages if the thread is collapsed.
          %N     message score
          %n     author's real name (or address if missing)
          %O     original  save  folder  where  mutt  would  formerly have
                 stashed the message: list name or recipient name  if  not
                 sent to a list
          %P     progress  indicator  for  the built-in pager (how much of
                 the file has been displayed)
          %r     comma separated list of "To:" recipients
          %R     comma separated list of "Cc:" recipients
          %s     subject of the message
          %S     status of the message ("N"/"D"/"d"/"!"/"r"/*)
          %t     "To:" field (recipients)
          %T     the appropriate character from the $to_chars string
          %u     user (login) name of the author
          %v     first name of the author, or the recipient if the message
                 is from you
          %W     name of organization of author ("Organization:" field)
          %x     "X-Comment-To:"  field (if present and compiled with NNTP
                 support)
          %X     number  of  attachments  (please  see  the  "attachments"
                 section for possible speed effects)
          %y     "X-Label:" field, if present
          %Y     "X-Label:"  field,  if  present, and (1) not at part of a
                 thread  tree,  (2)  at  the  top  of  a  thread,  or  (3)
                 "X-Label:"   is   different   from   preceding  message's
                 "X-Label:".
          %Z     message status flags
          %{fmt} the date and time of the message is converted to sender's
                 time  zone, and "fmt" is expanded by the library function
                 strftime(3); a leading bang disables locales
          %[fmt] the date and time of the  message  is  converted  to  the
                 local  time  zone,  and  "fmt" is expanded by the library
                 function strftime(3); a leading bang disables locales
          %(fmt) the local date and time when the  message  was  received.
                 "fmt"  is expanded by the library function strftime(3); a
                 leading bang disables locales
          %<fmt> the current local time. "fmt" is expanded by the  library
                 function strftime(3); a leading bang disables locales.
          %>X    right  justify  the  rest  of  the  string  and  pad with
                 character "X"
          %|X    pad to the end of the line with character "X"
          %*X    soft-fill with character "X" as pad

          Date format expressions can be  constructed  based  on  relative
          dates.  Using  the  date  formatting operators along with nested
          conditionals, the date format can be modified based on how old a
          message  is.   See  the  section  on  "Conditional Dates" for an
          explanation and examples "Soft-fill" deserves some  explanation:
          Normal  right-justification will print everything to the left of
          the "%>", displaying padding and whatever lies to the right only
          if  there's  room.  By contrast, soft-fill gives priority to the
          right-hand side, guaranteeing space to display  it  and  showing
          padding only if there's still room. If necessary, soft-fill will
          eat text leftwards to make room for rightward text.

          Note that these expandos are  supported  in  "save-hook",  "fcc-
          hook" and "fcc-save-hook", too.

   inews
          Type: path
          Default: ""

          If set, specifies the program and arguments used to deliver news
          posted by Mutt.  Otherwise, mutt  posts  article  using  current
          connection  to news server.  The following printf-style sequence
          is understood:
          %a     account url
          %p     port
          %P     port if specified
          %s     news server name
          %S     url schema
          %u     username

          Example:

          set inews="/usr/bin/inews -hS"

   ispell
          Type: path
          Default: "ispell"

          How to invoke ispell (GNU's spell-checking software).

   keep_flagged
          Type: boolean
          Default: no

          If set, read messages marked as flagged will not be  moved  from
          your  spool  mailbox  to your $mbox mailbox, or as a result of a
          "mbox-hook" command.

   keywords_legacy
          Type: boolean
          Default: yes

          If set, keywords/labels/tags will be written to whatever legacy,
          nonstandard  headers  (X-Label, X-Keywords, X-Mozilla-Keys) they
          were sourced from.

          If both "$keywords_legacy" and "$keywords_standard"  are  false,
          mutt will save keywords to legacy headers to ensure that it does
          not lose your labels.

   keywords_standard
          Type: boolean
          Default: no

          If  set,   keywords/labels/tags   will   be   written   to   the
          RFC2822-standard  Keywords:  header; this may imply a conversion
          from legacy headers.

          If both "$keywords_legacy" and "$keywords_standard"  are  false,
          mutt will save keywords to legacy headers to ensure that it does
          not lose your labels.

   mail_check
          Type: number
          Default: 5

          This variable configures how often (in seconds) mutt should look
          for new mail. Also see the $timeout variable.

   mail_check_recent
          Type: boolean
          Default: yes

          When set, Mutt will only notify you about new mail that has been
          received since the last  time  you  opened  the  mailbox.   When
          unset,  Mutt  will  notify  you  if  any  new mail exists in the
          mailbox, regardless of whether you have visited it recently.

          When $mark_old is set, Mutt does not  consider  the  mailbox  to
          contain new mail if only old messages exist.

   mail_check_stats
          Type: boolean
          Default: no

          When set, mutt will periodically calculate message statistics of
          a mailbox while polling for new mail.  It will check for unread,
          flagged,  and  total  message counts.  Because this operation is
          more performance intensive, it defaults  to  unset,  and  has  a
          separate  option,  $mail_check_stats_interval,  to  control  how
          often to update these counts.

   mail_check_stats_interval
          Type: number
          Default: 60

          When $mail_check_stats is  set,  this  variable  configures  how
          often (in seconds) mutt will update message counts.

   mailcap_path
          Type: string
          Default: ""

          This  variable  specifies which files to consult when attempting
          to display MIME bodies not directly supported by Mutt.

   mailcap_sanitize
          Type: boolean
          Default: yes

          If set, mutt will restrict  possible  characters  in  mailcap  %
          expandos  to a well-defined set of safe characters.  This is the
          safe setting, but we are not sure it  doesn't  break  some  more
          advanced MIME stuff.

          DON'T  CHANGE  THIS  SETTING UNLESS YOU ARE REALLY SURE WHAT YOU
          ARE DOING!

   maildir_header_cache_verify
          Type: boolean
          Default: yes

          Check for  Maildir  unaware  programs  other  than  mutt  having
          modified  maildir  files  when the header cache is in use.  This
          incurs one stat(2) per message every time the folder  is  opened
          (which can be very slow for NFS folders).

   maildir_trash
          Type: boolean
          Default: no

          If  set,  messages  marked  as  deleted  will  be saved with the
          maildir trashed flag  instead  of  unlinked.   Note:  this  only
          applies  to  maildir-style  mailboxes.   Setting it will have no
          effect on other mailbox types.

   maildir_check_cur
          Type: boolean
          Default: no

          If set, mutt will poll both the new and  cur  directories  of  a
          maildir  folder for new messages.  This might be useful if other
          programs interacting with the folder (e.g. dovecot)  are  moving
          new  messages  to  the  cur  directory.   Note that setting this
          option may slow down polling for new messages in large  folders,
          since mutt has to scan all cur messages.

   mark_macro_prefix
          Type: string
          Default: "'"

          Prefix  for  macros  created  using  mark-message.   A new macro
          automatically generated with <mark-message>a  will  be  composed
          from this prefix and the letter a.

   mark_old
          Type: boolean
          Default: yes

          Controls whether or not mutt marks new unread messages as old if
          you exit a mailbox without reading them.  With this option  set,
          the  next time you start mutt, the messages will show up with an
          "O" next to them in the index menu,  indicating  that  they  are
          old.

   markers
          Type: boolean
          Default: yes

          Controls  the display of wrapped lines in the internal pager. If
          set, a "+" marker is  displayed  at  the  beginning  of  wrapped
          lines.

          Also see the $smart_wrap variable.

   mask
          Type: regular expression
          Default: "!^\.[^.]"

          A  regular  expression  used  in  the  file  browser, optionally
          preceded by the not operator "!".  Only files whose names  match
          this mask will be shown. The match is always case-sensitive.

   mbox
          Type: path
          Default: "~/mbox"

          This   specifies  the  folder  into  which  read  mail  in  your
          $spoolfile folder will be appended.

          Also see the $move variable.

   mbox_type
          Type: folder magic
          Default: mbox

          The default mailbox type used when creating new folders. May  be
          any of "mbox", "MMDF", "MH" and "Maildir". This is overridden by
          the -m command-line option.

   menu_context
          Type: number
          Default: 0

          This variable controls the number of lines of context  that  are
          given when scrolling through menus. (Similar to $pager_context.)

   menu_move_off
          Type: boolean
          Default: yes

          When  unset, the bottom entry of menus will never scroll up past
          the bottom of the screen, unless there  are  less  entries  than
          lines.  When set, the bottom entry may move off the bottom.

   menu_scroll
          Type: boolean
          Default: no

          When  set,  menus  will be scrolled up or down one line when you
          attempt to move across a screen boundary.  If unset, the  screen
          is  cleared  and  the  next  or  previous  page  of  the menu is
          displayed (useful for slow links to avoid many redraws).

   message_cache_clean
          Type: boolean
          Default: no

          If set, mutt will clean out obsolete entries  from  the  message
          cache  when  the mailbox is synchronized. You probably only want
          to set it every once in a while, since it can be a  little  slow
          (especially for large folders).

   message_cachedir
          Type: path
          Default: ""

          Set  this  to a directory and mutt will cache copies of messages
          from your IMAP and POP servers here.  You  are  free  to  remove
          entries at any time.

          When  setting  this variable to a directory, mutt needs to fetch
          every  remote  message  only  once  and  can   perform   regular
          expression searches as fast as for local folders.

          Also see the $message_cache_clean variable.

   message_format
          Type: string
          Default: "%s"

          This  is  the  string  displayed  in  the  "attachment" menu for
          attachments of type  message/rfc822.   For  a  full  listing  of
          defined    printf(3)-like   sequences   see   the   section   on
          $index_format.

   meta_key
          Type: boolean
          Default: no

          If set, forces Mutt to interpret keystrokes with  the  high  bit
          (bit  8) set as if the user had pressed the Esc key and whatever
          key remains after having the high bit removed.  For example,  if
          the key pressed has an ASCII value of 0xf8, then this is treated
          as if the user had pressed Esc then "x".  This  is  because  the
          result  of removing the high bit from 0xf8 is 0x78, which is the
          ASCII character "x".

   metoo
          Type: boolean
          Default: no

          If unset, Mutt will remove your address  (see  the  "alternates"
          command) from the list of recipients when replying to a message.

   mh_purge
          Type: boolean
          Default: no

          When  unset,  mutt  will  mimic mh's behavior and rename deleted
          messages to ,<old file name> in mh  folders  instead  of  really
          deleting  them.  This  leaves  the  message  on  disk  but makes
          programs reading the folder ignore it. If the variable  is  set,
          the message files will simply be deleted.

          This option is similar to $maildir_trash for Maildir folders.

   mh_seq_flagged
          Type: string
          Default: "flagged"

          The name of the MH sequence used for flagged messages.

   mh_seq_replied
          Type: string
          Default: "replied"

          The name of the MH sequence used to tag replied messages.

   mh_seq_unseen
          Type: string
          Default: "unseen"

          The name of the MH sequence used for unseen messages.

   mime_forward
          Type: quadoption
          Default: no

          When  set,  the message you are forwarding will be attached as a
          separate message/rfc822 MIME part instead  of  included  in  the
          main  body  of  the message.  This is useful for forwarding MIME
          messages so the receiver can properly view the message as it was
          delivered  to  you.  If  you like to switch between MIME and not
          MIME from mail  to  mail,  set  this  variable  to  "ask-no"  or
          "ask-yes".

          Also see $forward_decode and $mime_forward_decode.

   mime_forward_decode
          Type: boolean
          Default: no

          Controls  the  decoding of complex MIME messages into text/plain
          when forwarding a message while $mime_forward is set.  Otherwise
          $forward_decode is used instead.

   mime_forward_rest
          Type: quadoption
          Default: yes

          When  forwarding multiple attachments of a MIME message from the
          attachment menu,  attachments  which  cannot  be  decoded  in  a
          reasonable manner will be attached to the newly composed message
          if this option is set.

   mime_subject
          Type: boolean
          Default: yes

          If unset, 8-bit "subject:" line in article header  will  not  be
          encoded  according  to  RFC2047  to base64.  This is useful when
          message is Usenet article, because MIME for news is  nonstandard
          feature.

   mix_entry_format
          Type: string
          Default: "%4n %c %-16s %a"

          This  variable  describes  the  format of a remailer line on the
          mixmaster chain selection screen.  The following  printf(3)-like
          sequences are supported:
          %n     The running number on the menu.
          %c     Remailer capabilities.
          %s     The remailer's short name.
          %a     The remailer's e-mail address.

   mixmaster
          Type: path
          Default: "mixmaster"

          This  variable contains the path to the Mixmaster binary on your
          system.  It is used with various sets of  parameters  to  gather
          the  list  of  known  remailers,  and  to finally send a message
          through the mixmaster chain.

          Note: On Debian systems,  this  option  is  set  by  default  to
          "mixmaster-filter" in /etc/Muttrc.

   move
          Type: quadoption
          Default: no

          Controls  whether  or not Mutt will move read messages from your
          spool mailbox to your $mbox mailbox, or as a result of a  "mbox-
          hook" command.

   narrow_tree
          Type: boolean
          Default: no

          This  variable,  when  set,  makes  the  thread  tree  narrower,
          allowing deeper threads to fit on the screen.

   net_inc
          Type: number
          Default: 10

          Operations that expect to transfer a large amount of  data  over
          the network will update their progress every $net_inc kilobytes.
          If set to 0, no progress messages will be displayed.

          See also $read_inc, $write_inc and $net_inc.

   new_mail_command
          Type: path
          Default: "NULL"

          If set, Mutt will call this  command  after  a  new  message  is
          received.   See  the $status_format documentation for the values
          that can be formatted into this command.

   news_cache_dir
          Type: path
          Default: "~/.mutt"

          This variable pointing to directory where Mutt will save  cached
          news  articles  and  headers  in. If unset, articles and headers
          will not be saved at all and will be reloaded  from  the  server
          each time.

   news_server
          Type: string
          Default: ""

          This  variable  specifies domain name or address of NNTP server.
          It defaults to the news  server  specified  in  the  environment
          variable  $NNTPSERVER  or contained in the file /etc/nntpserver.
          You can also specify username and an alternative port  for  each
          news server, ie:

          [[s]news://][username[:password]@]server[:port]

   newsgroups_charset
          Type: string
          Default: "utf-8"

          Character set of newsgroups descriptions.

   newsrc
          Type: path
          Default: "~/.newsrc"

          The  file,  containing  info about subscribed newsgroups - names
          and  indexes  of  read  articles.   The  following  printf-style
          sequence is understood:
          %a     account url
          %p     port
          %P     port if specified
          %s     news server name
          %S     url schema
          %u     username

   nntp_authenticators
          Type: string
          Default: ""

          This  is  a  colon-delimited list of authentication methods mutt
          may attempt to use to log in to a news server, in the order mutt
          should  try  them.   Authentication methods are either "user" or
          any SASL mechanism, e.g. "digest-md5", "gssapi"  or  "cram-md5".
          This  option  is  case-insensitive.  If it's unset (the default)
          mutt will try all available methods, in order  from  most-secure
          to least-secure.

          Example:

          set nntp_authenticators="digest-md5:user"

          Note:  Mutt  will only fall back to other authentication methods
          if  the  previous  methods  are  unavailable.  If  a  method  is
          available but authentication fails, mutt will not connect to the
          IMAP server.

   nntp_context
          Type: number
          Default: 1000

          This variable defines number of articles which will be in  index
          when  newsgroup entered.  If active newsgroup have more articles
          than  this  number,  oldest  articles  will  be  ignored.   Also
          controls  how  many articles headers will be saved in cache when
          you quit newsgroup.

   nntp_listgroup
          Type: boolean
          Default: yes

          This variable controls whether or not existence of each  article
          is checked when newsgroup is entered.

   nntp_load_description
          Type: boolean
          Default: yes

          This  variable  controls  whether  or  not descriptions for each
          newsgroup must be loaded when newsgroup is added to list  (first
          time list loading or new newsgroup adding).

   nntp_user
          Type: string
          Default: ""

          Your  login  name  on the NNTP server.  If unset and NNTP server
          requires authentication, Mutt will prompt you for  your  account
          name when you connect to news server.

   nntp_pass
          Type: string
          Default: ""

          Your password for NNTP account.

   nntp_poll
          Type: number
          Default: 60

          The  time  in  seconds  until any operations on newsgroup except
          post new article will cause recheck for new news.  If set to  0,
          Mutt   will   recheck  newsgroup  on  each  operation  in  index
          (stepping, read article, etc.).

   nm_open_timeout
          Type: number
          Default: 5

          This  variable  specifies  the  timeout  for  database  open  in
          seconds.

   nm_default_uri
          Type: string
          Default: ""

          This  variable  specifies the default Notmuch database in format
          notmuch://<absolute path>.

   nm_hidden_tags
          Type: string
          Default: "unread,draft,flagged,passed,replied,attachment,signed,encrypted"

          This variable specifies private notmuch tags which should not be
          printed on screen.

   nm_exclude_tags
          Type: string
          Default: ""

          The  messages tagged with these tags are excluded and not loaded
          from notmuch DB to mutt unless specified explicitly.

   nm_unread_tag
          Type: string
          Default: "unread"

          This variable specifies notmuch tag which  is  used  for  unread
          messages.  The  variable  is used to count unread messages in DB
          only. All other mutt commands use standard (e.g. maildir) flags.

   nm_db_limit
          Type: number
          Default: 0

          This variable  specifies  the  default  limit  used  in  notmuch
          queries.

   nm_query_type
          Type: string
          Default: "messages"

          This  variable  specifies  the  default  query  type (threads or
          messages) used in notmuch queries.

   nm_record
          Type: boolean
          Default: no

          This variable specifies if the mutt  record  should  indexed  by
          notmuch.

   nm_record_tags
          Type: string
          Default: ""

          This  variable  specifies  the  default tags applied to messages
          stored to the mutt record.

   pager
          Type: path
          Default: "builtin"

          This variable specifies which pager you would  like  to  use  to
          view  messages.  The  value  "builtin" means to use the built-in
          pager, otherwise this variable should specify  the  pathname  of
          the external pager you would like to use.

          Using  an external pager may have some disadvantages: Additional
          keystrokes are necessary because you can't call  mutt  functions
          directly  from  the pager, and screen resizes cause lines longer
          than the screen width to be badly formatted in the help menu.

   pager_context
          Type: number
          Default: 0

          This variable controls the number of lines of context  that  are
          given  when displaying the next or previous page in the internal
          pager.  By default, Mutt will display the line  after  the  last
          one  on  the  screen  at  the  top  of the next page (0 lines of
          context).

          This variable also specifies the amount  of  context  given  for
          search  results.  If  positive,  this  many  lines will be given
          before a match, if 0, the match will be top-aligned.

   pager_format
          Type: string
          Default: "-%Z- %C/%m: %-20.20n   %s%*  -- (%P)"

          This variable  controls  the  format  of  the  one-line  message
          "status" displayed before each message in either the internal or
          an external pager.   The  valid  sequences  are  listed  in  the
          $index_format section.

   pager_index_lines
          Type: number
          Default: 0

          Determines  the  number  of lines of a mini-index which is shown
          when in the pager.  The current message, unless near the top  or
          bottom  of the folder, will be roughly one third of the way down
          this mini-index, giving the reader the context of a few messages
          before  and  after the message.  This is useful, for example, to
          determine how many messages remain to be  read  in  the  current
          thread.   One  of  the lines is reserved for the status bar from
          the index, so a setting of 6 will  only  show  5  lines  of  the
          actual index.  A value of 0 results in no index being shown.  If
          the number of messages  in  the  current  folder  is  less  than
          $pager_index_lines,  then  the index will only use as many lines
          as it needs.

   pager_stop
          Type: boolean
          Default: no

          When set, the internal-pager will not move to the  next  message
          when  you are at the end of a message and invoke the <next-page>
          function.

   pgp_auto_decode
          Type: boolean
          Default: no

          If set, mutt will automatically attempt to  decrypt  traditional
          PGP  messages  whenever  the  user  performs  an operation which
          ordinarily would result in the contents  of  the  message  being
          operated   on.    For   example,   if   the   user   displays  a
          pgp-traditional message which has not been manually checked with
          the  <check-traditional-pgp>  function,  mutt will automatically
          check the message for traditional pgp.

   pgp_autoinline
          Type: boolean
          Default: no

          This option controls whether  Mutt  generates  old-style  inline
          (traditional)  PGP  encrypted  or  signed messages under certain
          circumstances.  This can be overridden by use of the  pgp  menu,
          when inline is not required.  The GPGME backend does not support
          this option.

          Note that Mutt might automatically  use  PGP/MIME  for  messages
          which  consist  of  more  than  a single MIME part.  Mutt can be
          configured to ask before sending PGP/MIME messages  when  inline
          (traditional) would not work.

          Also see the $pgp_mime_auto variable.

          Also  note  that  using  the  old-style  PGP  message  format is
          strongly deprecated.  (PGP only)

   pgp_check_exit
          Type: boolean
          Default: yes

          If set, mutt will check the exit code of the PGP subprocess when
          signing  or  encrypting.   A  non-zero  exit code means that the
          subprocess failed.  (PGP only)

   pgp_clearsign_command
          Type: string
          Default: ""

          This format is used to create  an  old-style  "clearsigned"  PGP
          message.    Note  that  the  use  of  this  format  is  strongly
          deprecated.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_decode_command
          Type: string
          Default: ""

          This  format strings specifies a command which is used to decode
          application/pgp attachments.

          The PGP command formats have their  own  set  of  printf(3)-like
          sequences:
          %p     Expands  to  PGPPASSFD=0 when a pass phrase is needed, to
                 an empty string otherwise. Note: This may be used with  a
                 %? construct.
          %f     Expands to the name of a file containing a message.
          %s     Expands  to  the  name of a file containing the signature
                 part
                            of   a   multipart/signed   attachment    when
                 verifying it.
          %a     The value of $pgp_sign_as.
          %r     One or more key IDs (or fingerprints if available).

          For  examples  on how to configure these formats for the various
          versions of PGP which are floating around, see the pgp  and  gpg
          sample  configuration  files  in the samples/ subdirectory which
          has been installed on your system alongside  the  documentation.
          (PGP only)

   pgp_decrypt_command
          Type: string
          Default: ""

          This command is used to decrypt a PGP encrypted message.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_decryption_okay
          Type: regular expression
          Default: ""

          If you assign text to  this  variable,  then  an  encrypted  PGP
          message  is only considered successfully decrypted if the output
          from $pgp_decrypt_command contains the text.  This  is  used  to
          protect    against    a    spoofed   encrypted   message,   with
          multipart/encrypted headers but containing a block that  is  not
          actually  encrypted.   (e.g.  simply  signed  and  ascii armored
          text).  (PGP only)

   pgp_encrypt_only_command
          Type: string
          Default: ""

          This command is used to encrypt a body part without signing it.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_encrypt_sign_command
          Type: string
          Default: ""

          This command is used to both sign and encrypt a body part.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_entry_format
          Type: string
          Default: "%4n %t%f %4l/0x%k %-4a %2c %u"

          This variable allows you to customize the PGP key selection menu
          to your personal taste. This string is similar to $index_format,
          but has its own set of printf(3)-like sequences:
          %n     number
          %k     key id
          %u     user id
          %a     algorithm
          %l     key length
          %f     flags
          %c     capabilities
          %t     trust/validity of the key-uid association
          %[<s>] date of the key where <s> is an strftime(3) expression

          (PGP only)

   pgp_export_command
          Type: string
          Default: ""

          This command is used to export a public key from the user's  key
          ring.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_getkeys_command
          Type: string
          Default: ""

          This command is invoked whenever Mutt needs to fetch the  public
          key   associated  with  an  email  address.   Of  the  sequences
          supported by $pgp_decode_command, %r is the only  printf(3)-like
          sequence  used  with  this  format.   Note that in this case, %r
          expands to the email address, not the public key ID (the key  ID
          is  unknown,  which is why Mutt is invoking this command).  (PGP
          only)

   pgp_good_sign
          Type: regular expression
          Default: ""

          If you assign a text to this variable, then a PGP  signature  is
          only  considered verified if the output from $pgp_verify_command
          contains the text. Use this variable if the exit code  from  the
          command is 0 even for bad signatures.  (PGP only)

   pgp_ignore_subkeys
          Type: boolean
          Default: yes

          Setting this variable will cause Mutt to ignore OpenPGP subkeys.
          Instead,  the  principal   key   will   inherit   the   subkeys'
          capabilities.   Unset  this  if you want to play interesting key
          selection games.  (PGP only)

   pgp_import_command
          Type: string
          Default: ""

          This command is used to import a key from  a  message  into  the
          user's public key ring.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_list_pubring_command
          Type: string
          Default: ""

          This command is used to list the  public  key  ring's  contents.
          The output format must be analogous to the one used by

          gpg --list-keys --with-colons --with-fingerprint

          This format is also generated by the pgpring utility which comes
          with mutt.

          Note: gpg's fixed-list-mode  option  should  not  be  used.   It
          produces  a  different  date  format  which  may  result in mutt
          showing incorrect key generation dates.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_list_secring_command
          Type: string
          Default: ""

          This  command  is  used  to list the secret key ring's contents.
          The output format must be analogous to the one used by:

          gpg --list-keys --with-colons --with-fingerprint

          This format is also generated by the pgpring utility which comes
          with mutt.

          Note:  gpg's  fixed-list-mode  option  should  not  be used.  It
          produces a different  date  format  which  may  result  in  mutt
          showing incorrect key generation dates.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_long_ids
          Type: boolean
          Default: yes

          If set, use 64 bit PGP key IDs, if unset use the normal  32  bit
          key  IDs.   NOTE:  Internally,  Mutt  has  transitioned to using
          fingerprints (or long key IDs as a fallback).  This  option  now
          only  controls  the display of key IDs in the key selection menu
          and a few other places.  (PGP only)

   pgp_mime_auto
          Type: quadoption
          Default: ask-yes

          This  option  controls  whether  Mutt  will   prompt   you   for
          automatically   sending   a   (signed/encrypted)  message  using
          PGP/MIME when inline (traditional) fails (for any reason).

          Also note  that  using  the  old-style  PGP  message  format  is
          strongly deprecated.  (PGP only)

   pgp_replyinline
          Type: boolean
          Default: no

          Setting  this  variable  will  cause  Mutt  to always attempt to
          create an  inline  (traditional)  message  when  replying  to  a
          message  which  is  PGP  encrypted/signed  inline.   This can be
          overridden by use of the pgp menu, when inline is not  required.
          This  option  does  not automatically detect if the (replied-to)
          message is inline; instead  it  relies  on  Mutt  internals  for
          previously checked/flagged messages.

          Note  that  Mutt  might  automatically use PGP/MIME for messages
          which consist of more than a single  MIME  part.   Mutt  can  be
          configured  to  ask before sending PGP/MIME messages when inline
          (traditional) would not work.

          Also see the $pgp_mime_auto variable.

          Also note  that  using  the  old-style  PGP  message  format  is
          strongly deprecated.  (PGP only)

   pgp_retainable_sigs
          Type: boolean
          Default: no

          If  set,  signed  and  encrypted messages will consist of nested
          multipart/signed and multipart/encrypted body parts.

          This is  useful  for  applications  like  encrypted  and  signed
          mailing  lists,  where the outer layer (multipart/encrypted) can
          be easily removed, while  the  inner  multipart/signed  part  is
          retained.  (PGP only)

   pgp_show_unusable
          Type: boolean
          Default: yes

          If  set,  mutt  will  display  non-usable  keys  on  the PGP key
          selection menu.  This includes keys  which  have  been  revoked,
          have  expired,  or  have  been marked as "disabled" by the user.
          (PGP only)

   pgp_sign_as
          Type: string
          Default: ""

          If you have more than one key pair, this option  allows  you  to
          specify  which  of  your private keys to use.  It is recommended
          that  you  use  the  keyid  form  to  specify  your  key   (e.g.
          0x00112233).  (PGP only)

   pgp_sign_command
          Type: string
          Default: ""

          This  command is used to create the detached PGP signature for a
          multipart/signed PGP/MIME body part.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_sort_keys
          Type: sort order
          Default: address

          Specifies  how  the  entries  in  the  pgp  menu are sorted. The
          following are legal values:
          address
                 sort alphabetically by user id
          keyid  sort alphabetically by key id
          date   sort by key creation date
          trust  sort by the trust of the key

          If you prefer reverse order of the above values, prefix it  with
          "reverse-".  (PGP only)

   pgp_strict_enc
          Type: boolean
          Default: yes

          If  set, Mutt will automatically encode PGP/MIME signed messages
          as quoted-printable.  Please note that unsetting  this  variable
          may lead to problems with non-verifyable PGP signatures, so only
          change this if you know what you are doing.  (PGP only)

   pgp_timeout
          Type: number
          Default: 300

          The number of seconds  after  which  a  cached  passphrase  will
          expire if not used.  (PGP only)

   pgp_use_gpg_agent
          Type: boolean
          Default: no

          If  set,  mutt will use a possibly-running gpg-agent(1) process.
          Note  that  as  of  version  2.1,  GnuPG   no   longer   exports
          GPG_AGENT_INFO,  so  mutt  no  longer  verifies  if the agent is
          running.  (PGP only)

   pgp_verify_command
          Type: string
          Default: ""

          This command is used to verify PGP signatures.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pgp_verify_key_command
          Type: string
          Default: ""

          This  command  is  used  to  verify key information from the key
          selection menu.

          This is a format string, see the $pgp_decode_command command for
          possible printf(3)-like sequences.  (PGP only)

   pipe_decode
          Type: boolean
          Default: no

          Used in connection with the <pipe-message> command.  When unset,
          Mutt will pipe the messages without any preprocessing. When set,
          Mutt  will  weed headers and will attempt to decode the messages
          first.

   pipe_sep
          Type: string
          Default: "\n"

          The separator to add between messages  when  piping  a  list  of
          tagged messages to an external Unix command.

   pipe_split
          Type: boolean
          Default: no

          Used  in  connection  with the <pipe-message> function following
          <tag-prefix>.  If this variable is unset, when piping a list  of
          tagged messages Mutt will concatenate the messages and will pipe
          them all concatenated.  When set, Mutt will  pipe  the  messages
          one by one.  In both cases the messages are piped in the current
          sorted order, and the $pipe_sep separator is  added  after  each
          message.

   pop_auth_try_all
          Type: boolean
          Default: yes

          If  set,  Mutt  will  try  all available authentication methods.
          When unset, Mutt will only fall  back  to  other  authentication
          methods  if the previous methods are unavailable. If a method is
          available but authentication fails, Mutt will not connect to the
          POP server.

   pop_authenticators
          Type: string
          Default: ""

          This  is  a  colon-delimited list of authentication methods mutt
          may attempt to use to log in to an POP server, in the order mutt
          should  try  them.   Authentication  methods  are either "user",
          "apop" or any SASL mechanism,  e.g.  "digest-md5",  "gssapi"  or
          "cram-md5".   This option is case-insensitive. If this option is
          unset (the default) mutt will  try  all  available  methods,  in
          order from most-secure to least-secure.

          Example:

          set pop_authenticators="digest-md5:apop:user"

   pop_checkinterval
          Type: number
          Default: 60

          This variable configures how often (in seconds) mutt should look
          for new mail in the currently selected mailbox if it  is  a  POP
          mailbox.

   pop_delete
          Type: quadoption
          Default: ask-no

          If  set,  Mutt will delete successfully downloaded messages from
          the POP server  when  using  the  <fetch-mail>  function.   When
          unset,  Mutt  will  download messages but also leave them on the
          POP server.

   pop_host
          Type: string
          Default: ""

          The name of your POP server for the <fetch-mail> function.   You
          can  also  specify  an  alternative port, username and password,
          i.e.:

          [pop[s]://][username[:password]@]popserver[:port]

          where "[...]" denotes an optional part.

   pop_last
          Type: boolean
          Default: no

          If this variable is set, mutt will try to  use  the  "LAST"  POP
          command  for retrieving only unread messages from the POP server
          when using the <fetch-mail> function.

   pop_pass
          Type: string
          Default: ""

          Specifies the password for your POP  account.   If  unset,  Mutt
          will prompt you for your password when you open a POP mailbox.

          Warning:  you  should  only  use  this  option when you are on a
          fairly secure machine,  because  the  superuser  can  read  your
          muttrc even if you are the only one who can read the file.

   pop_reconnect
          Type: quadoption
          Default: ask-yes

          Controls  whether  or  not Mutt will try to reconnect to the POP
          server if the connection is lost.

   pop_user
          Type: string
          Default: ""

          Your login name on the POP server.

          This variable defaults to your user name on the local machine.

   post_indent_string
          Type: string
          Default: ""

          Similar to the $attribution  variable,  Mutt  will  append  this
          string  after  the inclusion of a message which is being replied
          to.

   post_moderated
          Type: quadoption
          Default: ask-yes

          If set to yes, Mutt will post article to newsgroup that have not
          permissions  to  posting (e.g. moderated).  Note: if news server
          does not support posting to that newsgroup or totally read-only,
          that posting will not have an effect.

   postpone
          Type: quadoption
          Default: ask-yes

          Controls  whether  or  not  messages are saved in the $postponed
          mailbox when you elect not to send immediately.

          Also see the $recall variable.

   postponed
          Type: path
          Default: "~/postponed"

          Mutt allows you to indefinitely  "postpone  sending  a  message"
          which  you  are editing.  When you choose to postpone a message,
          Mutt saves it in the mailbox specified by this variable.

          Also see the $postpone variable.

   postpone_encrypt
          Type: boolean
          Default: no

          When set, postponed messages that are marked for encryption will
          be  encrypted  using  the  key  in  $postpone_encrypt_as  before
          saving.  (Crypto only)

   postpone_encrypt_as
          Type: string
          Default: ""

          This is the key used to encrypt postponed messages.   It  should
          be  in keyid or fingerprint form (e.g. 0x00112233 for PGP or the
          hash-value that OpenSSL generates for S/MIME).  (Crypto only)

   preconnect
          Type: string
          Default: ""

          If set, a  shell  command  to  be  executed  if  mutt  fails  to
          establish a connection to the server. This is useful for setting
          up secure connections, e.g. with ssh(1). If the command  returns
          a  nonzero status, mutt gives up opening the server. Example:

          set preconnect="ssh -f -q -L 1234:mailhost.net:143 mailhost.net \
          sleep 20 < /dev/null > /dev/null"

          Mailbox   "foo"   on   "mailhost.net"  can  now  be  reached  as
          "{localhost:1234}foo".

          Note: For this example to work, you must be able to  log  in  to
          the remote machine without having to enter a password.

   print
          Type: quadoption
          Default: ask-no

          Controls  whether  or  not Mutt really prints messages.  This is
          set to "ask-no" by default, because some people accidentally hit
          "p" often.

   print_command
          Type: path
          Default: "lpr"

          This  specifies  the  command  pipe that should be used to print
          messages.

   print_decode
          Type: boolean
          Default: yes

          Used in connection with the <print-message>  command.   If  this
          option is set, the message is decoded before it is passed to the
          external command specified by $print_command.  If this option is
          unset,  no  processing  will  be  applied  to  the  message when
          printing it.  The latter setting may be useful if you are  using
          some  advanced  printer  filter which is able to properly format
          e-mail messages for printing.

   print_split
          Type: boolean
          Default: no

          Used in connection with the <print-message>  command.   If  this
          option  is  set,  the  command  specified  by  $print_command is
          executed once for each message which is to be printed.  If  this
          option  is  unset,  the  command  specified by $print_command is
          executed only once, and all the messages are concatenated,  with
          a form feed as the message separator.

          Those  who use the enscript(1) program's mail-printing mode will
          most likely want to set this option.

   prompt_after
          Type: boolean
          Default: yes

          If you use an external $pager, setting this variable will  cause
          Mutt  to  prompt  you  for a command when the pager exits rather
          than returning to the index menu.  If unset, Mutt will return to
          the index menu when the external pager exits.

   query_command
          Type: path
          Default: ""

          This  specifies  the  command  Mutt  will  use  to make external
          address queries.  The string may contain a "%s", which  will  be
          substituted with the query string the user types.  Mutt will add
          quotes around the  string  substituted  for  "%s"  automatically
          according  to  shell  quoting  rules, so you should avoid adding
          your own.  If no "%s" is found in the string, Mutt  will  append
          the user's query to the end of the string.  See "query" for more
          information.

   query_format
          Type: string
          Default: "%4c %t %-25.25a %-25.25n %?e?(%e)?"

          This variable describes the format  of  the  "query"  menu.  The
          following printf(3)-style sequences are understood:
          %a     destination address
          %c     current entry number
          %e     extra information *
          %n     destination name
          %t     "*" if current entry is tagged, a space otherwise
          %>X    right justify the rest of the string and pad with "X"
          %|X    pad to the end of the line with "X"
          %*X    soft-fill with character "X" as pad

          For   an  explanation  of  "soft-fill",  see  the  $index_format
          documentation.

          * = can be optionally printed if nonzero, see the $status_format
          documentation.

   quit
          Type: quadoption
          Default: yes

          This  variable  controls whether "quit" and "exit" actually quit
          from mutt.  If this option is set, they do quit, if it is unset,
          they  have no effect, and if it is set to ask-yes or ask-no, you
          are prompted for confirmation when you try to quit.

   quote_regexp
          Type: regular expression
          Default: "^([ \t]*[|>:}#])+"

          A regular expression used in the  internal  pager  to  determine
          quoted  sections  of  text in the body of a message. Quoted text
          may be  filtered  out  using  the  <toggle-quoted>  command,  or
          colored according to the "color quoted" family of directives.

          Higher  levels  of  quoting  may  be colored differently ("color
          quoted1",  "color  quoted2",  etc.).  The   quoting   level   is
          determined  by removing the last character from the matched text
          and recursively reapplying the regular expression until it fails
          to produce a match.

          Match  detection  may  be  overridden  by  the  $smileys regular
          expression.

   read_inc
          Type: number
          Default: 10

          If set to a value  greater  than  0,  Mutt  will  display  which
          message  it  is  currently  on  when  reading  a mailbox or when
          performing search actions such as search and limit. The  message
          is  printed  after this many messages have been read or searched
          (e.g., if set to 25, Mutt will print a message  when  it  is  at
          message  25,  and  then again when it gets to message 50).  This
          variable is meant to indicate progress when reading or searching
          large mailboxes which may take some time.  When set to 0, only a
          single message will appear before the reading the mailbox.

          Also see the $write_inc, $net_inc and  $time_inc  variables  and
          the   "tuning"   section   of   the   manual   for   performance
          considerations.

   read_only
          Type: boolean
          Default: no

          If set, all folders are opened in read-only mode.

   realname
          Type: string
          Default: ""

          This variable specifies what "real" or "personal" name should be
          used when sending messages.

          By default, this is the GECOS field from /etc/passwd.  Note that
          this variable will not be used when the user has set a real name
          in the $from variable.

   recall
          Type: quadoption
          Default: ask-yes

          Controls  whether  or  not  Mutt recalls postponed messages when
          composing a new message.

          Setting this variable to yes is not generally useful,  and  thus
          not recommended.  Note that the <recall-message> function can be
          used to manually recall postponed messages.

          Also see $postponed variable.

   record
          Type: path
          Default: "~/sent"

          This specifies the file into which your outgoing messages should
          be  appended.  (This is meant as the primary method for saving a
          copy of your messages, but another way to do this is  using  the
          "my_hdr"  command  to  create  a  "Bcc:"  field  with your email
          address in it.)

          The value of  $record  is  overridden  by  the  $force_name  and
          $save_name variables, and the "fcc-hook" command.

   reflow_space_quotes
          Type: boolean
          Default: yes

          This  option controls how quotes from format=flowed messages are
          displayed in the pager  and  when  replying  (with  $text_flowed
          unset).   When  set, this option adds spaces after each level of
          quote marks, turning ">>>foo" into "> > > foo".

          Note: If $reflow_text is  unset,  this  option  has  no  effect.
          Also,  this  option does not affect replies when $text_flowed is
          set.

   reflow_text
          Type: boolean
          Default: yes

          When set, Mutt will  reformat  paragraphs  in  text/plain  parts
          marked  format=flowed.   If  unset, Mutt will display paragraphs
          unaltered from how they appear in the message body.  See RFC3676
          for details on the format=flowed format.

          Also see $reflow_wrap, and $wrap.

   reflow_wrap
          Type: number
          Default: 78

          This   variable   controls  the  maximum  paragraph  width  when
          reformatting text/plain parts when $reflow_text  is  set.   When
          the  value  is  0,  paragraphs will be wrapped at the terminal's
          right  margin.   A  positive  value  sets  the  paragraph  width
          relative to the left margin.  A negative value set the paragraph
          width relative to the right margin.

          Also see $wrap.

   reply_regexp
          Type: regular expression
          Default: "^(re([\[0-9\]+])*|aw):[ \t]*"

          A regular expression  used  to  recognize  reply  messages  when
          threading  and  replying.  The  default value corresponds to the
          English "Re:" and the German "Aw:".

   reply_self
          Type: boolean
          Default: no

          If unset and you are replying to a message  sent  by  you,  Mutt
          will  assume  that  you  want to reply to the recipients of that
          message rather than to yourself.

          Also see the "alternates" command.

   reply_to
          Type: quadoption
          Default: ask-yes

          If set, when replying to a message, Mutt will  use  the  address
          listed  in  the  Reply-to: header as the recipient of the reply.
          If unset, it will use the address  in  the  From:  header  field
          instead.   This option is useful for reading a mailing list that
          sets the Reply-To: header field to the list address and you want
          to send a private message to the author of a message.

   reply_with_xorig
          Type: boolean
          Default: no

          This  variable  provides a toggle. When active, the From: header
          will be  extracted  from  the  current  mail's  `X-Original-To:'
          header.   This   setting   does   not   have   precedence   over
          "reverse_realname".

          Assuming `fast_reply' is disabled, this option will  prompt  the
          user with a prefilled From: header.

   resolve
          Type: boolean
          Default: yes

          When  set, the cursor will be automatically advanced to the next
          (possibly undeleted) message whenever a  command  that  modifies
          the current message is executed.

   resume_draft_files
          Type: boolean
          Default: no

          If  set,  draft  files (specified by -H on the command line) are
          processed  similarly  to  when  resuming  a  postponed  message.
          Recipients  are  not prompted for; send-hooks are not evaluated;
          no  alias  expansion  takes  place;  user-defined  headers   and
          signatures are not added to the message.

   resume_edited_draft_files
          Type: boolean
          Default: yes

          If  set, draft files previously edited (via -E -H on the command
          line) will have $resume_draft_files automatically set when  they
          are used as a draft file again.

          The  first  time  a draft file is saved, mutt will add a header,
          X-Mutt-Resume-Draft to the saved file.  The next time the  draft
          file  is  read  in,  if  mutt  sees  the  header,  it  will  set
          $resume_draft_files.

          This  option  is  designed  to  prevent   multiple   signatures,
          user-defined  headers,  and  other processing effects from being
          made multiple times to the draft file.

   reverse_alias
          Type: boolean
          Default: no

          This variable controls whether or  not  Mutt  will  display  the
          "personal"  name from your aliases in the index menu if it finds
          an alias that matches the message's sender.  For example, if you
          have the following alias:

          alias juser abd30425@somewhere.net (Joe User)

          and then you receive mail which contains the following header:

          From: abd30425@somewhere.net

          It would be displayed in the index menu as "Joe User" instead of
          "abd30425@somewhere.net."  This  is  useful  when  the  person's
          e-mail address is not human friendly.

   reverse_name
          Type: boolean
          Default: no

          It  may  sometimes  arrive  that  you  receive mail to a certain
          machine, move the messages to another machine, and reply to some
          the  messages  from there.  If this variable is set, the default
          From: line of the reply messages  is  built  using  the  address
          where  you  received  the  messages  you are replying to if that
          address matches your "alternates".  If the variable is unset, or
          the  address that would be used doesn't match your "alternates",
          the From: line will use your address on the current machine.

          Also see the "alternates" command.

   reverse_realname
          Type: boolean
          Default: yes

          This variable  fine-tunes  the  behavior  of  the  $reverse_name
          feature.   When  it  is  set,  mutt  will  use  the address from
          incoming messages as-is, possibly including eventual real names.
          When  it  is  unset, mutt will override any such real names with
          the setting of the $realname variable.

   rfc2047_parameters
          Type: boolean
          Default: no

          When this variable is set, Mutt will decode RFC2047-encoded MIME
          parameters. You want to set this variable when mutt suggests you
          to save attachments to files named like:

          =?iso-8859-1?Q?file=5F=E4=5F991116=2Ezip?=

          When this variable is set interactively,  the  change  won't  be
          active until you change folders.

          Note   that   this  use  of  RFC2047's  encoding  is  explicitly
          prohibited by the standard, but nevertheless encountered in  the
          wild.

          Also  note  that setting this parameter will not have the effect
          that mutt generates this kind of encoding.  Instead,  mutt  will
          unconditionally use the encoding specified in RFC2231.

   save_address
          Type: boolean
          Default: no

          If set, mutt will take the sender's full address when choosing a
          default folder for saving a mail. If $save_name  or  $force_name
          is  set  too, the selection of the Fcc folder will be changed as
          well.

   save_empty
          Type: boolean
          Default: yes

          When unset, mailboxes which contain no saved  messages  will  be
          removed  when closed (the exception is $spoolfile which is never
          removed).  If set, mailboxes are never removed.

          Note: This only applies to mbox and MMDF folders, Mutt does  not
          delete MH and Maildir directories.

   save_history
          Type: number
          Default: 0

          This  variable  controls  the size of the history (per category)
          saved in the $history_file file.

   save_name
          Type: boolean
          Default: no

          This variable controls  how  copies  of  outgoing  messages  are
          saved.   When set, a check is made to see if a mailbox specified
          by the recipient address exists (this is done by searching for a
          mailbox  in  the $folder directory with the username part of the
          recipient address).  If the mailbox exists, the outgoing message
          will be saved to that mailbox, otherwise the message is saved to
          the $record mailbox.

          Also see the $force_name variable.

   score
          Type: boolean
          Default: yes

          When this variable is unset, scoring is turned off.  This can be
          useful  to  selectively disable scoring for certain folders when
          the $score_threshold_delete variable and related are used.

   score_threshold_delete
          Type: number
          Default: -1

          Messages which have been assigned a score equal to or lower than
          the value of this variable are automatically marked for deletion
          by mutt.  Since mutt scores are always greater than or equal  to
          zero,  the  default  setting  of this variable will never mark a
          message for deletion.

   score_threshold_flag
          Type: number
          Default: 9999

          Messages which have been assigned a score greater than or  equal
          to this variable's value are automatically marked "flagged".

   score_threshold_read
          Type: number
          Default: -1

          Messages which have been assigned a score equal to or lower than
          the value of this variable are automatically marked as  read  by
          mutt.   Since  mutt  scores  are always greater than or equal to
          zero, the default setting of this variable  will  never  mark  a
          message read.

   search_context
          Type: number
          Default: 0

          For the pager, this variable specifies the number of lines shown
          before search  results.  By  default,  search  results  will  be
          top-aligned.

   send_charset
          Type: string
          Default: "us-ascii:iso-8859-1:utf-8"

          A  colon-delimited list of character sets for outgoing messages.
          Mutt will use the first character set into which the text can be
          converted  exactly.   If  your  $charset is not "iso-8859-1" and
          recipients may  not  understand  "UTF-8",  it  is  advisable  to
          include   in  the  list  an  appropriate  widely  used  standard
          character set (such as "iso-8859-2", "koi8-r" or  "iso-2022-jp")
          either instead of or after "iso-8859-1".

          In  case the text cannot be converted into one of these exactly,
          mutt uses $charset as a fallback.

   sendmail
          Type: path
          Default: "/usr/sbin/sendmail -oem -oi"

          Specifies the program and arguments used to deliver mail sent by
          Mutt.   Mutt  expects  that  the  specified  program  interprets
          additional arguments as recipient addresses.  Mutt  appends  all
          recipients after adding a -- delimiter (if not already present).
          Additional flags, such as for $use_8bitmime, $use_envelope_from,
          $dsn_notify, or $dsn_return will be added before the delimiter.

   sendmail_wait
          Type: number
          Default: 0

          Specifies  the  number  of  seconds  to  wait  for the $sendmail
          process to finish before giving up and putting delivery  in  the
          background.

          Mutt interprets the value of this variable as follows:
          >0     number  of  seconds to wait for sendmail to finish before
                 continuing
          0      wait forever for sendmail to finish
          <0     always put sendmail in the background without waiting

          Note that if you specify a value other than 0, the output of the
          child process will be put in a temporary file.  If there is some
          error, you will be informed as to where to find the output.

   shell
          Type: path
          Default: ""

          Command to use when spawning a subshell.  By default, the user's
          login shell from /etc/passwd is used.

   save_unsubscribed
          Type: boolean
          Default: no

          When  set, info about unsubscribed newsgroups will be saved into
          "newsrc" file and into cache.

   show_new_news
          Type: boolean
          Default: yes

          If set, news server will be asked for new newsgroups on entering
          the  browser.   Otherwise,  it will be done only once for a news
          server.  Also controls whether or not number of new articles  of
          subscribed newsgroups will be then checked.

   show_only_unread
          Type: boolean
          Default: no

          If  set, only subscribed newsgroups that contain unread articles
          will be displayed in browser.

   sidebar_delim_chars
          Type: string
          Default: "/."

          This contains the list of characters which  you  would  like  to
          treat as folder separators for displaying paths in the sidebar.

          Local     mail     is    often    arranged    in    directories:
          `dir1/dir2/mailbox'.

          set sidebar_delim_chars='/'

          IMAP mailboxes are often named: `folder1.folder2.mailbox'.

          set sidebar_delim_chars='.'

          See    also:    $sidebar_short_path,     $sidebar_folder_indent,
          $sidebar_indent_string.

   sidebar_divider_char
          Type: string
          Default: "|"

          This  specifies  the  characters to be drawn between the sidebar
          (when visible) and the other  Mutt  panels.  ASCII  and  Unicode
          line-drawing characters are supported.

   sidebar_folder_indent
          Type: boolean
          Default: no

          Set this to indent mailboxes in the sidebar.

          See     also:    $sidebar_short_path,    $sidebar_indent_string,
          $sidebar_delim_chars.

   sidebar_format
          Type: string
          Default: "%B%*  %n"

          This variable allows you to customize the sidebar display.  This
          string  is  similar  to  $index_format,  but  has its own set of
          printf(3)-like sequences:
          %B     Name of the mailbox
          %S     * Size of mailbox (total number of messages)
          %N     * Number of New messages in the mailbox
          %n     N if mailbox has new mail, blank otherwise
          %F     * Number of Flagged messages in the mailbox
          %!     "!" : one flagged message; "!!" : two  flagged  messages;
                 "n!"  : n flagged messages (for n > 2).  Otherwise prints
                 nothing.
          %d     * @ Number of deleted messages
          %L     * @ Number of messages after limiting
          %t     * @ Number of tagged messages
          %>X    right justify the rest of the string and pad with "X"
          %|X    pad to the end of the line with "X"
          %*X    soft-fill with character "X" as pad

          * = Can be optionally printed if nonzero @ = Only applicable  to
          the current folder

          In  order  to  use %S, %N, %F, and %!, $mail_check_stats must be
          set.  When thus set,  a  suggested  value  for  this  option  is
          "%B%?F? [%F]?%* %?N?%N/?%S".

   sidebar_indent_string
          Type: string
          Default: "  "

          This  specifies  the  string that is used to indent mailboxes in
          the sidebar.  It defaults to two spaces.

          See    also:    $sidebar_short_path,     $sidebar_folder_indent,
          $sidebar_delim_chars.

   sidebar_new_mail_only
          Type: boolean
          Default: no

          When  set,  the  sidebar  will only display mailboxes containing
          new, or flagged, mail.

          See also: sidebar_whitelist.

   sidebar_next_new_wrap
          Type: boolean
          Default: no

          When set, the <sidebar-next-new> command will not stop  and  the
          end  of the list of mailboxes, but wrap around to the beginning.
          The <sidebar-prev-new> command is similarly  affected,  wrapping
          around to the end of the list.

   sidebar_on_right
          Type: boolean
          Default: no

          When  set, the sidebar will appear on the right-hand side of the
          screen.

   sidebar_short_path
          Type: boolean
          Default: no

          By default the sidebar will show the mailbox's path, relative to
          the $folder variable. Setting sidebar_shortpath=yes will shorten
          the names relative to the previous name. Here's an example:
          shortpath=no
                 shortpath=yes      shortpath=yes,       folderindent=yes,
                 indentstr=".."
          fruit  fruit fruit
          fruit.apple
                 apple ..apple
          fruit.banana
                 banana ..banana
          fruit.cherry
                 cherry ..cherry

          See    also:    $sidebar_delim_chars,    $sidebar_folder_indent,
          $sidebar_indent_string.

   sidebar_sort_method
          Type: sort order
          Default: order

          Specifies how to sort entries in the file browser.  By  default,
          the entries are sorted alphabetically.  Valid values:
           alpha (alphabetically)
           count (all message count)
           flagged (flagged message count)
           new (new message count)
           unsorted

          You  may optionally use the "reverse-" prefix to specify reverse
          sorting order (example: "set sort_browser=reverse-date").

   sidebar_visible
          Type: boolean
          Default: no

          This specifies whether or not to show sidebar. The sidebar shows
          a list of all your mailboxes.

          See also: $sidebar_format, $sidebar_width

   sidebar_width
          Type: number
          Default: 30

          This  controls  the  width  of  the  sidebar.  It is measured in
          screen columns.  For example: sidebar_width=20 could display  20
          ASCII characters, or 10 Chinese characters.

   sig_dashes
          Type: boolean
          Default: yes

          If  set,  a line containing "-- " (note the trailing space) will
          be inserted before your $signature.  It is strongly  recommended
          that  you not unset this variable unless your signature contains
          just your name.  The reason for this is  because  many  software
          packages  use  "--  \n"  to detect your signature.  For example,
          Mutt has the ability to highlight the signature in  a  different
          color in the built-in pager.

   sig_on_top
          Type: boolean
          Default: no

          If  set,  the  signature  will  be included before any quoted or
          forwarded text.  It is strongly recommended that you do not  set
          this variable unless you really know what you are doing, and are
          prepared to take some heat from netiquette guardians.

   signature
          Type: path
          Default: "~/.signature"

          Specifies the filename of your signature, which is  appended  to
          all outgoing messages.   If the filename ends with a pipe ("|"),
          it is assumed that filename is a shell command and input  should
          be read from its standard output.

   simple_search
          Type: string
          Default: "~f %s | ~s %s"

          Specifies  how  Mutt  should  expand a simple search into a real
          search pattern.  A simple search is one that  does  not  contain
          any  of  the  "~"  pattern  operators.   See "patterns" for more
          information on search patterns.

          For example, if you simply type  "joe"  at  a  search  or  limit
          prompt, Mutt will automatically expand it to the value specified
          by this variable by replacing "%s"  with  the  supplied  string.
          For  the default value, "joe" would be expanded to: "~f joe | ~s
          joe".

   skip_quoted_offset
          Type: number
          Default: 0

          Lines of quoted text that are displayed before the unquoted text
          after "skip to quoted" command (S)

   sleep_time
          Type: number
          Default: 1

          Specifies  time,  in  seconds, to pause while displaying certain
          informational messages, while moving from folder to  folder  and
          after  expunging  messages from the current folder.  The default
          is to pause one second, so a  value  of  zero  for  this  option
          suppresses the pause.

   smart_wrap
          Type: boolean
          Default: yes

          Controls  the  display  of lines longer than the screen width in
          the internal pager. If set, long lines are  wrapped  at  a  word
          boundary.   If  unset,  lines  are  simply wrapped at the screen
          edge. Also see the $markers variable.

   smileys
          Type: regular expression
          Default: "(>From )|(:[-^]?[][)(><}{|/DP])"

          The  pager  uses  this  variable  to  catch  some  common  false
          positives   of  $quote_regexp,  most  notably  smileys  and  not
          consider a line quoted text if it also  matches  $smileys.  This
          mostly happens at the beginning of a line.

   smime_ask_cert_label
          Type: boolean
          Default: yes

          This flag controls whether you want to be asked to enter a label
          for a certificate about to be added to the database or  not.  It
          is set by default.  (S/MIME only)

   smime_ca_location
          Type: path
          Default: ""

          This variable contains the name of either a directory, or a file
          which  contains  trusted  certificates  for  use  with  OpenSSL.
          (S/MIME only)

          Note:  On  Debian  systems,  this defaults to the first existing
          file  in  the   following   list:   ~/.smime/ca-certificates.crt
          ~/.smime/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt.

   smime_certificates
          Type: path
          Default: ""

          Since  for  S/MIME there is no pubring/secring as with PGP, mutt
          has to handle storage and retrieval of keys by itself.  This  is
          very  basic  right  now, and keys and certificates are stored in
          two  different  directories,  both  named  as   the   hash-value
          retrieved  from  OpenSSL.  There is an index file which contains
          mailbox-address keyid pairs, and which can be  manually  edited.
          This option points to the location of the certificates.  (S/MIME
          only)

   smime_decrypt_command
          Type: string
          Default: ""

          This format string specifies a command which is used to  decrypt
          application/x-pkcs7-mime attachments.

          The OpenSSL command formats have their own set of printf(3)-like
          sequences similar to PGP's:
          %f     Expands to the name of a file containing a message.
          %s     Expands to the name of a file  containing  the  signature
                 part
                            of    a   multipart/signed   attachment   when
                 verifying it.
          %k     The key-pair specified with $smime_default_key
          %c     One or more certificate IDs.
          %a     The algorithm used for encryption.
          %d     The   message    digest    algorithm    specified    with
                 $smime_sign_digest_alg.
          %C     CA location:  Depending on whether $smime_ca_location
                            points to a directory or file, this expands to
                            "-CApath   $smime_ca_location"   or   "-CAfile
                 $smime_ca_location".

          For examples on how to configure these formats, see the smime.rc
          in  the  samples/  subdirectory which has been installed on your
          system alongside the documentation.  (S/MIME only)

   smime_decrypt_use_default_key
          Type: boolean
          Default: yes

          If set (default) this tells mutt to  use  the  default  key  for
          decryption.       Otherwise,      if      managing      multiple
          certificate-key-pairs, mutt will try to use the  mailbox-address
          to determine the key to use. It will ask you to supply a key, if
          it can't find one.  (S/MIME only)

   smime_default_key
          Type: string
          Default: ""

          This is the default key-pair to use for signing.  This  must  be
          set to the keyid (the hash-value that OpenSSL generates) to work
          properly (S/MIME only)

   smime_encrypt_command
          Type: string
          Default: ""

          This command is used to create encrypted S/MIME messages.

          This is a format string, see the $smime_decrypt_command  command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_encrypt_self
          Type: quadoption
          Default: no

          Encrypt the message to $smime_default_key too.  (S/MIME only)

   smime_encrypt_with
          Type: string
          Default: "aes256"

          This  sets  the  algorithm  that  should be used for encryption.
          Valid choices are "aes128", "aes192", "aes256",  "des",  "des3",
          "rc2-40", "rc2-64", "rc2-128".  (S/MIME only)

   smime_get_cert_command
          Type: string
          Default: ""

          This  command  is used to extract X509 certificates from a PKCS7
          structure.

          This is a format string, see the $smime_decrypt_command  command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_get_cert_email_command
          Type: string
          Default: ""

          This  command  is  used to extract the mail address(es) used for
          storing X509 certificates, and  for  verification  purposes  (to
          check  whether  the  certificate  was  issued  for  the sender's
          mailbox).

          This is a format string, see the $smime_decrypt_command  command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_get_signer_cert_command
          Type: string
          Default: ""

          This   command   is  used  to  extract  only  the  signers  X509
          certificate from a S/MIME signature, so that  the  certificate's
          owner may get compared to the email's "From:" field.

          This  is a format string, see the $smime_decrypt_command command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_import_cert_command
          Type: string
          Default: ""

          This command is used to import a certificate via smime_keys.

          This is a format string, see the $smime_decrypt_command  command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_is_default
          Type: boolean
          Default: no

          The   default   behavior   of   mutt   is  to  use  PGP  on  all
          auto-sign/encryption operations. To override and to use  OpenSSL
          instead  this  must  be  set.  However, this has no effect while
          replying,  since  mutt  will  automatically  select   the   same
          application  that was used to sign/encrypt the original message.
          (Note  that  this  variable  can  be  overridden  by   unsetting
          $crypt_autosmime.)  (S/MIME only)

   smime_keys
          Type: path
          Default: ""

          Since  for  S/MIME there is no pubring/secring as with PGP, mutt
          has to handle storage and retrieval  of  keys/certs  by  itself.
          This  is  very basic right now, and stores keys and certificates
          in two different  directories,  both  named  as  the  hash-value
          retrieved  from  OpenSSL.  There is an index file which contains
          mailbox-address keyid pair, and which can  be  manually  edited.
          This option points to the location of the private keys.  (S/MIME
          only)

   smime_pk7out_command
          Type: string
          Default: ""

          This command is used  to  extract  PKCS7  structures  of  S/MIME
          signatures, in order to extract the public X509 certificate(s).

          This  is a format string, see the $smime_decrypt_command command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_sign_command
          Type: string
          Default: ""

          This command is  used  to  created  S/MIME  signatures  of  type
          multipart/signed, which can be read by all mail clients.

          This  is a format string, see the $smime_decrypt_command command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_sign_digest_alg
          Type: string
          Default: "sha256"

          This sets the algorithm that should be used  for  the  signature
          message  digest.   Valid  choices  are  "md5", "sha1", "sha224",
          "sha256", "sha384", "sha512".  (S/MIME only)

   smime_sign_opaque_command
          Type: string
          Default: ""

          This command is  used  to  created  S/MIME  signatures  of  type
          application/x-pkcs7-signature, which can only be handled by mail
          clients supporting the S/MIME extension.

          This is a format string, see the $smime_decrypt_command  command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_timeout
          Type: number
          Default: 300

          The  number  of  seconds  after  which  a cached passphrase will
          expire if not used.  (S/MIME only)

   smime_verify_command
          Type: string
          Default: ""

          This command  is  used  to  verify  S/MIME  signatures  of  type
          multipart/signed.

          This  is a format string, see the $smime_decrypt_command command
          for possible printf(3)-like sequences.  (S/MIME only)

   smime_verify_opaque_command
          Type: string
          Default: ""

          This command  is  used  to  verify  S/MIME  signatures  of  type
          application/x-pkcs7-mime.

          This  is a format string, see the $smime_decrypt_command command
          for possible printf(3)-like sequences.  (S/MIME only)

   smtp_authenticators
          Type: string
          Default: ""

          This is a colon-delimited list of  authentication  methods  mutt
          may  attempt  to  use  to log in to an SMTP server, in the order
          mutt should try  them.   Authentication  methods  are  any  SASL
          mechanism,  e.g.   "digest-md5",  "gssapi"  or "cram-md5".  This
          option is case-insensitive. If it is "unset" (the default)  mutt
          will  try  all  available  methods, in order from most-secure to
          least-secure.

          Example:

          set smtp_authenticators="digest-md5:cram-md5"

   smtp_pass
          Type: string
          Default: ""

          Specifies the password for your SMTP account.   If  unset,  Mutt
          will  prompt  you for your password when you first send mail via
          SMTP.  See $smtp_url to configure mutt to send mail via SMTP.

          Warning: you should only use this  option  when  you  are  on  a
          fairly  secure  machine,  because  the  superuser  can read your
          muttrc even if you are the only one who can read the file.

   smtp_url
          Type: string
          Default: ""

          Defines the SMTP smarthost where sent  messages  should  relayed
          for delivery. This should take the form of an SMTP URL, e.g.:

          smtp[s]://[user[:pass]@]host[:port]

          where  "[...]"  denotes an optional part.  Setting this variable
          overrides the value of the $sendmail variable.

   sort
          Type: sort order
          Default: date

          Specifies how to sort  messages  in  the  "index"  menu.   Valid
          values are:
           date or date-sent
           date-received
           from
           mailbox-order (unsorted)
           score
           size
           spam
           subject
           threads
           to

          You  may optionally use the "reverse-" prefix to specify reverse
          sorting order.

          Example:

          set sort=reverse-date-sent

          Note: On Debian systems,  this  option  is  set  by  default  to
          "threads" in /etc/Muttrc.

   sort_alias
          Type: sort order
          Default: alias

          Specifies  how  the entries in the "alias" menu are sorted.  The
          following are legal values:
           address (sort alphabetically by email address)
           alias (sort alphabetically by alias name)
           unsorted (leave in order specified in .muttrc)

   sort_aux
          Type: sort order
          Default: date

          When sorting by threads, this variable controls how threads  are
          sorted in relation to other threads, and how the branches of the
          thread trees are sorted.  This can be  set  to  any  value  that
          $sort  can,  except  "threads" (in that case, mutt will just use
          "date-sent").  You  can  also  specify  the  "last-"  prefix  in
          addition  to  the "reverse-" prefix, but "last-" must come after
          "reverse-".  The "last-" prefix causes  messages  to  be  sorted
          against its siblings by which has the last descendant, using the
          rest of $sort_aux as an ordering.  For instance,

          set sort_aux=last-date-received

          would mean that if a new message is received in a  thread,  that
          thread becomes the last one displayed (or the first, if you have
          "set sort=reverse-threads".)

          Note: For reversed  $sort  order  $sort_aux  is  reversed  again
          (which  is  not the right thing to do, but kept to not break any
          existing configuration setting).

   sort_browser
          Type: sort order
          Default: alpha

          Specifies how to sort entries in the file browser.  By  default,
          the entries are sorted alphabetically.  Valid values:
           alpha (alphabetically)
           count (all message count)
           date
           desc (description)
           new (new message count)
           size
           unsorted

          You  may optionally use the "reverse-" prefix to specify reverse
          sorting order (example: "set sort_browser=reverse-date").

   sort_re
          Type: boolean
          Default: yes

          This variable is  only  useful  when  sorting  by  mailboxes  in
          sidebar. By default, entries are unsorted.  Valid values:
           count (all message count)
           desc  (virtual mailbox description)
           new (new message count)
           path
           unsorted

   spam_separator
          Type: string
          Default: ","

          This  variable  controls what happens when multiple spam headers
          are matched: if unset, each successive header will overwrite any
          previous  matches  value  for  the  spam  label.  If  set,  each
          successive  match  will  append  to  the  previous,  using  this
          variable's value as a separator.

   spoolfile
          Type: path
          Default: ""

          If  your  spool  mailbox  is  in  a non-default place where Mutt
          cannot find it, you can specify its location with this variable.
          Mutt  will  initially  set  this  variable  to  the value of the
          environment variable $MAIL or $MAILDIR if either is defined.

   ssl_ca_certificates_file
          Type: path
          Default: ""

          This  variable  specifies   a   file   containing   trusted   CA
          certificates.  Any server certificate that is signed with one of
          these CA certificates is also automatically accepted.

          Example:

          set ssl_ca_certificates_file=/etc/ssl/certs/ca-certificates.crt

   ssl_client_cert
          Type: path
          Default: ""

          The file containing a  client  certificate  and  its  associated
          private key.

   ssl_force_tls
          Type: boolean
          Default: no

          If  this variable is set, Mutt will require that all connections
          to remote servers be encrypted. Furthermore it will  attempt  to
          negotiate  TLS  even  if  the  server  does  not  advertise  the
          capability,  since  it  would  otherwise  have  to   abort   the
          connection anyway. This option supersedes $ssl_starttls.

   ssl_min_dh_prime_bits
          Type: number
          Default: 0

          This  variable  specifies  the minimum acceptable prime size (in
          bits) for use in any Diffie-Hellman key exchange. A value  of  0
          will use the default from the GNUTLS library.

   ssl_starttls
          Type: quadoption
          Default: yes

          If  set  (the  default),  mutt  will  attempt to use STARTTLS on
          servers advertising the capability. When unset,  mutt  will  not
          attempt to use STARTTLS regardless of the server's capabilities.

   ssl_use_sslv3
          Type: boolean
          Default: no

          This  variable  specifies whether to attempt to use SSLv3 in the
          SSL authentication process. Note that SSLv2 and  SSLv3  are  now
          considered fundamentally insecure and are no longer recommended.

   ssl_use_tlsv1
          Type: boolean
          Default: yes

          This variable specifies whether to attempt to use TLSv1.0 in the
          SSL authentication process.

   ssl_use_tlsv1_1
          Type: boolean
          Default: yes

          This variable specifies whether to attempt to use TLSv1.1 in the
          SSL authentication process.

   ssl_use_tlsv1_2
          Type: boolean
          Default: yes

          This variable specifies whether to attempt to use TLSv1.2 in the
          SSL authentication process.

   ssl_verify_dates
          Type: boolean
          Default: yes

          If set (the default),  mutt  will  not  automatically  accept  a
          server  certificate  that  is  either  not  yet valid or already
          expired. You should only unset this for particular known  hosts,
          using the <account-hook> function.

   ssl_verify_host
          Type: boolean
          Default: yes

          If  set  (the  default),  mutt  will  not automatically accept a
          server certificate whose host name does not match the host  used
          in  your  folder  URL. You should only unset this for particular
          known hosts, using the <account-hook> function.

   ssl_ciphers
          Type: string
          Default: ""

          Contains a colon-seperated list of ciphers  to  use  when  using
          SSL.  For OpenSSL, see ciphers(1) for the syntax of the string.

          For GnuTLS, this option will be used in place of "NORMAL" at the
          start of the priority string.  See  gnutls_priority_init(3)  for
          the  syntax  and  more  details.  (Note: GnuTLS version 2.1.7 or
          higher is required.)

   status_chars
          Type: string
          Default: "-*%A"

          Controls  the  characters  used  by  the   "%r"   indicator   in
          $status_format.  The first character is used when the mailbox is
          unchanged. The second is used when the mailbox has been changed,
          and  it  needs  to  be  resynchronized. The third is used if the
          mailbox is in read-only mode, or if  the  mailbox  will  not  be
          written  when  exiting  that  mailbox (You can toggle whether to
          write changes to a mailbox with  the  <toggle-write>  operation,
          bound  by  default  to "%"). The fourth is used to indicate that
          the current folder has  been  opened  in  attach-  message  mode
          (Certain   operations  like  composing  a  new  mail,  replying,
          forwarding, etc. are not permitted in this mode).

   status_format
          Type: string
          Default: "-%r-NeoMutt: %f [Msgs:%?M?%M/?%m%?n? New:%n?%?o? Old:%o?%?d? Del:%d?%?F? Flag:%F?%?t? Tag:%t?%?p? Post:%p?%?b? Inc:%b?%?l? %l?]---(%s/%S)-%>-(%P)---"

          Controls the format of the status line displayed in the  "index"
          menu.   This string is similar to $index_format, but has its own
          set of printf(3)-like sequences:
          %b     number of mailboxes with new mail *
          %d     number of deleted messages *
          %f     the full pathname of the current mailbox
          %F     number of flagged messages *
          %h     local hostname
          %l     size (in bytes) of the current mailbox *
          %L     size (in bytes) of the messages shown (i.e., which  match
                 the current limit) *
          %m     the number of messages in the mailbox *
          %M     the  number  of  messages  shown  (i.e.,  which match the
                 current limit) *
          %n     number of new messages in the mailbox *
          %o     number of old unread messages *
          %p     number of postponed messages *
          %P     percentage of the way through the index
          %r     modified/read-only/won't-write/attach-message  indicator,
                 according to $status_chars
          %s     current sorting mode ($sort)
          %S     current aux sorting method ($sort_aux)
          %t     number of tagged messages *
          %u     number of unread messages *
          %v     Mutt version string
          %V     currently active limit pattern, if any *
          %>X    right justify the rest of the string and pad with "X"
          %|X    pad to the end of the line with "X"
          %*X    soft-fill with character "X" as pad

          For   an  explanation  of  "soft-fill",  see  the  $index_format
          documentation.

          * = can be optionally printed if nonzero

          Some of the above sequences can be used to  optionally  print  a
          string  if  their  value  is nonzero.  For example, you may only
          want to see the number of  flagged  messages  if  such  messages
          exist, since zero is not particularly meaningful.  To optionally
          print a string based  upon  one  of  the  above  sequences,  the
          following construct is used:

          %?<sequence_char>?<optional_string>?

          where  sequence_char  is  a  character from the table above, and
          optional_string  is  the  string  you  would  like  printed   if
          sequence_char  is  nonzero.   optional_string  may contain other
          sequences as well as normal text, but you may not nest  optional
          strings.

          Here  is  an  example  illustrating  how to optionally print the
          number of new messages in a mailbox:

          %?n?%n new messages.?

          You can also switch between  two  strings  using  the  following
          construct:

          %?<sequence_char>?<if_string>&<else_string>?

          If  the  value  of  sequence_char is non-zero, if_string will be
          expanded, otherwise else_string will be expanded.

          You can force the result of any printf(3)-like  sequence  to  be
          lowercase by prefixing the sequence character with an underscore
          ("_") sign.  For example, if  you  want  to  display  the  local
          hostname in lowercase, you would use: "%_h".

          If  you  prefix  the  sequence  character  with  a  colon  (":")
          character, mutt will  replace  any  dots  in  the  expansion  by
          underscores.  This might be helpful with IMAP folders that don't
          like dots in folder names.

   status_on_top
          Type: boolean
          Default: no

          Setting this variable causes the "status bar" to be displayed on
          the  first  line  of  the screen rather than near the bottom. If
          $help is set, too it'll be placed at the bottom.

   strict_threads
          Type: boolean
          Default: no

          If set, threading will only make use of  the  "In-Reply-To"  and
          "References:"  fields  when  you  $sort  by message threads.  By
          default, messages with the same subject are grouped together  in
          "pseudo  threads.". This may not always be desirable, such as in
          a personal  mailbox  where  you  might  have  several  unrelated
          messages  with  the  subjects  like  "hi" which will get grouped
          together.  See  also  $sort_re  for  a  less  drastic   way   of
          controlling this behavior.

   suspend
          Type: boolean
          Default: yes

          When unset, mutt won't stop when the user presses the terminal's
          susp key, usually "^Z". This is useful if you run mutt inside an
          xterm using a command like "xterm -e mutt".

   text_flowed
          Type: boolean
          Default: no

          When  set,  mutt  will  generate  "format=flowed"  bodies with a
          content type of "text/plain;  format=flowed".   This  format  is
          easier  to  handle for some mailing software, and generally just
          looks like ordinary text.  To actually make use of this format's
          features, you'll need support in your editor.

          Note that $indent_string is ignored when this option is set.

   thorough_search
          Type: boolean
          Default: yes

          Affects  the  ~b  and  ~h search operations described in section
          "patterns".   If  set,  the  headers  and  body/attachments   of
          messages  to be searched are decoded before searching. If unset,
          messages are searched as they appear in the folder.

          Users searching attachments or for non-ASCII  characters  should
          set   this   value   because   decoding   also   includes   MIME
          parsing/decoding  and  possible   character   set   conversions.
          Otherwise  mutt  will  attempt  to match against the raw message
          received (for example quoted-printable encoded or  with  encoded
          headers) which may lead to incorrect search results.

   thread_received
          Type: boolean
          Default: no

          When  set, mutt uses the date received rather than the date sent
          to thread messages by subject.

   tilde
          Type: boolean
          Default: no

          When set, the internal-pager will pad blank lines to the  bottom
          of the screen with a tilde ("~").

   time_inc
          Type: number
          Default: 0

          Along  with  $read_inc,  $write_inc, and $net_inc, this variable
          controls  the  frequency  with  which   progress   updates   are
          displayed.   It   suppresses   updates   less   than   $time_inc
          milliseconds apart. This can improve throughput on systems  with
          slow terminals, or when running mutt on a remote system.

          Also  see  the  "tuning"  section  of the manual for performance
          considerations.

   timeout
          Type: number
          Default: 600

          When Mutt is waiting for user input either idling in menus or in
          an  interactive prompt, Mutt would block until input is present.
          Depending on the context, this would prevent certain  operations
          from  working,  like  checking  for  new mail or keeping an IMAP
          connection alive.

          This variable controls how many seconds Mutt will at  most  wait
          until it aborts waiting for input, performs these operations and
          continues to wait for input.

          A value of zero or less will cause Mutt to never time out.

   tmpdir
          Type: path
          Default: ""

          This variable allows you to specify where Mutt  will  place  its
          temporary  files  needed  for displaying and composing messages.
          If this variable is not set, the environment variable $TMPDIR is
          used.  If $TMPDIR is not set then "/tmp" is used.

   to_chars
          Type: string
          Default: " +TCFL"

          Controls  the  character used to indicate mail addressed to you.
          The first character is  the  one  used  when  the  mail  is  not
          addressed  to your address.  The second is used when you are the
          only recipient of the message.  The third is when  your  address
          appears  in  the  "To:"  header  field, but you are not the only
          recipient of the message.  The fourth  character  is  used  when
          your address is specified in the "Cc:" header field, but you are
          not the only recipient.  The fifth character is used to indicate
          mail  that  was  sent  by  you.   The sixth character is used to
          indicate when a mail was sent to a  mailing-list  you  subscribe
          to.

   trash
          Type: path
          Default: ""

          If  set,  this  variable  specifies the path of the trash folder
          where the mails marked for deletion will be  moved,  instead  of
          being irremediably purged.

          NOTE:  When  you  delete  a  message  in the trash folder, it is
          really deleted, so that you have a way to clean the trash.

   ts_icon_format
          Type: string
          Default: "M%?n?AIL&ail?"

          Controls the format of the icon title, as long as  "$ts_enabled"
          is  set.  This string is identical in formatting to the one used
          by "$status_format".

   ts_enabled
          Type: boolean
          Default: no

          Controls whether mutt tries to set the terminal status line  and
          icon  name.   Most terminal emulators emulate the status line in
          the window title.

   ts_status_format
          Type: string
          Default: "NeoMutt with %?m?%m messages&no messages?%?n? [%n NEW]?"

          Controls the format of  the  terminal  status  line  (or  window
          title), provided that "$ts_enabled" has been set. This string is
          identical in formatting to the one used by "$status_format".

   tunnel
          Type: string
          Default: ""

          Setting this variable will cause  mutt  to  open  a  pipe  to  a
          command  instead of a raw socket. You may be able to use this to
          set  up  preauthenticated  connections  to  your  IMAP/POP3/SMTP
          server. Example:

          set tunnel="ssh -q mailhost.net /usr/local/libexec/imapd"

          Note: For this example to work you must be able to log in to the
          remote machine without having to enter a password.

          When set, Mutt uses  the  tunnel  for  all  remote  connections.
          Please see "account-hook" in the manual for how to use different
          tunnel commands per connection.

   uncollapse_jump
          Type: boolean
          Default: no

          When set, Mutt will jump to the next  unread  message,  if  any,
          when the current thread is uncollapsed.

   use_8bitmime
          Type: boolean
          Default: no

          Warning: do not set this variable unless you are using a version
          of sendmail which supports the -B8BITMIME flag (such as sendmail
          8.8.x) or you may not be able to send mail.

          When  set,  Mutt  will invoke $sendmail with the -B8BITMIME flag
          when sending 8-bit messages to enable ESMTP negotiation.

   use_domain
          Type: boolean
          Default: yes

          When set, Mutt will qualify all local  addresses  (ones  without
          the  "@host" portion) with the value of $hostname.  If unset, no
          addresses will be qualified.

   use_envelope_from
          Type: boolean
          Default: no

          When set, mutt will set the envelope sender of the message.   If
          $envelope_from_address  is  set,  it  will be used as the sender
          address. If unset, mutt will attempt to derive the  sender  from
          the "From:" header.

          Note  that  this information is passed to sendmail command using
          the -f command line switch. Therefore setting this option is not
          useful  if  the $sendmail variable already contains -f or if the
          executable pointed  to  by  $sendmail  doesn't  support  the  -f
          switch.

   use_from
          Type: boolean
          Default: yes

          When  set,  Mutt  will  generate  the  "From:" header field when
          sending messages.  If unset, no "From:"  header  field  will  be
          generated unless the user explicitly sets one using the "my_hdr"
          command.

   use_ipv6
          Type: boolean
          Default: yes

          When set, Mutt will look for IPv6 addresses of hosts it tries to
          contact.   If this option is unset, Mutt will restrict itself to
          IPv4 addresses.  Normally, the default should work.

   user_agent
          Type: boolean
          Default: yes

          When set, mutt will  add  a  "User-Agent:"  header  to  outgoing
          messages,   indicating  which  version  of  mutt  was  used  for
          composing them.

   visual
          Type: path
          Default: ""

          Specifies the visual editor to invoke when the "~v"  command  is
          given in the built-in editor.

   vfolder_format
          Type: string
          Default: "%2C %?n?%4n/&     ?%4m %f"

          This  variable  allows you to customize the file browser display
          for virtual folders to your personal taste.   This  string  uses
          many of the same expandos as $folder_format.

   virtual_spoolfile
          Type: boolean
          Default: no

          When \fset, mutt will use the first defined virtual mailbox (see
          virtual-mailboxes) as a spool file.

   wait_key
          Type: boolean
          Default: yes

          Controls whether Mutt will ask you  to  press  a  key  after  an
          external   command   has   been   invoked  by  these  functions:
          <shell-escape>, <pipe-message>,  <pipe-entry>,  <print-message>,
          and <print-entry> commands.

          It  is  also  used  when  viewing  attachments with "auto_view",
          provided  that   the   corresponding   mailcap   entry   has   a
          needsterminal flag, and the external program is interactive.

          When  set, Mutt will always ask for a key. When unset, Mutt will
          wait for a key only if the external command returned a  non-zero
          status.

   weed
          Type: boolean
          Default: yes

          When  set,  mutt  will weed headers when displaying, forwarding,
          printing, or replying to messages.

   wrap
          Type: number
          Default: 0

          When set to a positive value,  mutt  will  wrap  text  at  $wrap
          characters.   When  set to a negative value, mutt will wrap text
          so that there are $wrap characters of empty space on  the  right
          side  of the terminal. Setting it to zero makes mutt wrap at the
          terminal width.

          Also see $reflow_wrap.

   wrap_headers
          Type: number
          Default: 78

          This option specifies  the  number  of  characters  to  use  for
          wrapping  an  outgoing  message's  headers.  Allowed  values are
          between 78 and 998 inclusive.

          Note:  This  option  usually  shouldn't  be   changed.   RFC5233
          recommends  a  line  length  of 78 (the default), so please only
          change this setting when you know what you're doing.

   wrap_search
          Type: boolean
          Default: yes

          Controls whether searches wrap around the end.

          When set, searches will wrap around the first  (or  last)  item.
          When unset, incremental searches will not wrap.

   wrapmargin
          Type: number
          Default: 0

          (DEPRECATED) Equivalent to setting $wrap with a negative value.

   write_bcc
          Type: boolean
          Default: yes

          Controls  whether  mutt  writes  out  the Bcc header when saving
          messages to FCC. Bcc headers will never be written to a  message
          when sending it. Note: this behavior is Debian specific.

   write_inc
          Type: number
          Default: 10

          When  writing  a  mailbox,  a  message  will  be  printed  every
          $write_inc messages to indicate progress.  If set to 0,  only  a
          single message will be displayed before writing a mailbox.

          Also see the $read_inc, $net_inc and $time_inc variables and the
          "tuning" section of the manual for performance considerations.

   xlabel_delimiter
          Type: string
          Default: ""

          The character used  to  delimit  distinct  keywords  in  X-Label
          headers.    X-Label  is  primarily  a  Mutt  artifact,  and  the
          semantics of the field were never defined: it is free-form text.
          However   interaction  with  X-Keywords:,  X-Mozilla-Keys:,  and
          Keywords: requires that  we  adopt  some  means  of  identifying
          separate  keywords  within the field.  Set this to your personal
          convention.

          This affect both parsing existing X-Label  headers  and  writing
          new X-Label headers.  You can modify this variable in runtime to
          accomplish various kinds of conversion.

   x_comment_to
          Type: boolean
          Default: no

          If set, Mutt will add "X-Comment-To:" field (that contains  full
          name  of  original article author) to article that followuped to
          newsgroup.

   collapse_all
          Type: boolean
          Default: no

          When set, Mutt will collapse all threads when entering a folder.

SEE ALSO

   iconv(1),   iconv(3),   mailcap(5),   maildir(5),   mbox(5),   mutt(1),
   printf(3), regex(7), strftime(3)

   The Mutt Manual

   The Mutt home page: http://www.mutt.org/

AUTHOR

   Michael  Elkins,  and  others.   Use <mutt-dev@mutt.org> to contact the
   developers.





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