GNU Mailutils Manual

https://mailutils.org/manual/
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### Mailutils Help Command Example

Source: https://mailutils.org/manual/html_section/mailutils.html

Demonstrates how to get help for a specific mailutils command. This is equivalent to using the --help option with that command.

```bash
mailutils help ldflags
```

--------------------------------

### MDA Configuration for Mailing Lists

Source: https://mailutils.org/manual/mailutils.html

Example MDA configuration showing SQL interface setup for user database retrieval.

```ini
auth {
  authorization (sql, system);
  authentication (generic, system);
}

sql {
  interface mysql;
  db mail;
  getpwnam "SELECT user as name, mailbox, \
           'x' as passwd, 500 as uid, 2 as gid, \
           '/nonexistent' as dir, '/sbin/nologin' as shell \
           FROM userdb \
           WHERE user='${user}'";
}
```

--------------------------------

### Example Authorization Module List

Source: https://mailutils.org/manual/html_node/auth-statement.html

Defines the order in which authorization modules are tried. This example shows searching system, then SQL, then virtual domain databases.

```plaintext
(system, sql, virtdomains)
```

--------------------------------

### Example of Custom Headline Format with Date Formatting

Source: https://mailutils.org/manual/html_section/mail.html

An example demonstrating how to set a custom headline format string that includes a fixed-width message number and a custom-formatted date.

```mail configuration example
set headline="%4m %20D{%Y-%m-%dT%H:%M:%S}"
```

--------------------------------

### MDA Configuration for Mailing List

Source: https://mailutils.org/manual/html_chapter/Programs.html

Example MDA configuration showing SQL interface setup for user authentication, which is a prerequisite for the userdb table entries that implement mailing lists.

```mda
auth {
  authorization (sql, system);
  authentication (generic, system);
}

sql {
  interface mysql;
  db mail;
  getpwnam "SELECT user as name, mailbox, \"
x\" as passwd, 500 as uid, 2 as gid, \"
           \"/nonexistent\" as dir, '/sbin/nologin' as shell \"
           FROM userdb \"
           WHERE user='${user}'";
}


```

--------------------------------

### Example Mailbox Mode Configuration

Source: https://mailutils.org/manual/html_node/Namespace.html

Demonstrates how to set read and write permissions for the group within a namespace.

```text
mailbox-mode g=rw;

```

--------------------------------

### Sieve Conditional Logic Example

Source: https://mailutils.org/manual/html_section/Syntax.html

An example demonstrating the use of 'if', 'elsif', and 'else' with 'header' tests and 'discard' or 'fileinto' actions.

```Sieve
if header :contains "from" "coyote"
  {
    discard;
  }
elsif header :contains ["subject"] ["$$$"]
  {
    discard;
  }
else
  {
    fileinto "INBOX";
  }

```

--------------------------------

### Configure comsatd via inetd

Source: https://mailutils.org/manual/html_section/comsatd.html

The server can be started from /etc/inetd.conf. This is the default operation mode.

```bash
comsat dgram  udp wait  root  /usr/sbin/comsatd \
comsatd -c /etc/comsat.conf

```

--------------------------------

### Example Command with Optional Arguments

Source: https://mailutils.org/manual/html_chapter/Sieve-Language.html

Illustrates a 'header' command with optional arguments like ':mime' and ':comparator', and positional arguments.

```Sieve
header :mime :comparator "i;octet" ["to", "from"] "bug-mailutils@gnu.org"
```

--------------------------------

### Mailutils Configuration File Example

Source: https://mailutils.org/manual/html_node/Paths.html

Illustrates a basic Mailutils configuration structure with nested blocks and statements.

```mailutils
foo {
  bar {
    baz 45;   # A.
  }
  baz 98;     # B.
}

```

--------------------------------

### Detailed Verbose Configuration Parsing

Source: https://mailutils.org/manual/html_node/configuration.html

Example output with increased verbosity, showing each parsed configuration statement and its location.

```text
imap4d: parsing file `/etc/mailutils.conf'
# 1 "/etc/mailutils.conf"
mailbox {
# 2 "/etc/mailutils.conf"
  mailbox-pattern maildir:/var/spool/mail;type=index;param=2;user=${user};
# 3 "/etc/mailutils.conf"
  mailbox-type maildir;
};

```

--------------------------------

### Example DBM Quota Database

Source: https://mailutils.org/manual/html_node/DBM-Quotas.html

This example demonstrates the structure and content of a DBM quota database file. It shows how to set default quotas, unlimited quotas, and specific quotas for users, including size units like 'mb'.

```text
# Default quota value:
DEFAULT         5mb

# Following users have unlimited mailbox size
root            NONE
smith           NONE

# Rest of users
plog            26214400
karin           10mB

```

--------------------------------

### Setting opt-doc-col

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

Demonstrates changing the starting column for option descriptions using `ARGP_HELP_FMT`. The default is 29. This example shows the effect of `opt-doc-col=19` and `opt-doc-col=9`.

```shell
$ `sieve --help|grep ADDRESS`
  -e, --email=ADDRESS        Override user email address
$ `ARGP_HELP_FMT=opt-doc-col=19 sieve --help|grep ADDRESS`
  -e, --email=ADDRESS   Override user email address
$ `ARGP_HELP_FMT=opt-doc-col=9 sieve --help|grep -i ADDRESS`
  -e, --email=ADDRESS
         Override user email address

```

--------------------------------

### Convert Database Format using Dump and Create

Source: https://mailutils.org/manual/html_node/Dump-the-Database.html

This example demonstrates converting a database file to a different format (GDBM) by piping the output of the dump command to the create command.

```bash
mailutils dbm dump file.db | mailutils dbm create gdbm://new.db
```

--------------------------------

### Putmail Local Delivery Example

Source: https://mailutils.org/manual/mailutils.html

Example of using the putmail utility to deliver mail to a local mailbox.

```bash
putmail /var/spool/mail/test

```

--------------------------------

### Example Mailutils Ticket File

Source: https://mailutils.org/manual/html_node/mailutils-wicket.html

This is an example of the content found in a Mailutils ticket file, used for matching URLs.

```text
smtp://foo:bar@*
smtp://bar:baz@gnu.org
*://baz:qux@*
*://quux:bar@gnu.org

```

--------------------------------

### Here-Document Example

Source: https://mailutils.org/manual/html_section/configuration.html

Demonstrates the use of a here-document to include multiline strings in a configuration.

```plaintext
<<EOT
A multiline
string
EOT

```

--------------------------------

### IMAP4 Daemon inetd Configuration

Source: https://mailutils.org/manual/html_section/imap4d.html

Example configuration for starting imap4d using the inetd super-server. This is the default operation mode.

```plaintext
imap4  stream tcp nowait  root  /usr/local/sbin/imap4d imap4d
```

--------------------------------

### Example: Sending a Message with mailutils

Source: https://mailutils.org/manual/html_node/mailutils-send.html

Demonstrates how to send a message from a file named 'input.msg' using the SMTP service on 'localhost'.

```bash
$ mailutils send localhost input.msg
```

--------------------------------

### Example Virtual Domain Password File Entry

Source: https://mailutils.org/manual/html_section/configuration.html

An example record from a virtual domain password file, showing user details and maildrop location.

```text
smith:Wbld/G2Q2Le2w:1000:1000:Email Account:/var/mail/domain/smith:/dev/null

```

--------------------------------

### Set doc option column in help output

Source: https://mailutils.org/manual/html_section/Usage-Vars.html

The `doc-opt-col` variable determines the starting column for 'doc options', which are arbitrary documentation strings displayed like options. This example sets the column to 6.

```bash
Usage: folder [OPTION...] [action] [msg]
GNU MH folder
  Actions are:
      --list                 List the contents of the folder stack
  ...
$ `ARGP_HELP_FMT=doc-opt-col=6 sieve --help|grep ADDRESS`
Usage: folder [OPTION...] [action] [msg]
GNU MH folder
      Actions are:
      --list                 List the contents of the folder stack
  ...
```

--------------------------------

### Example: Formatting Subject for Reply

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Example of using 'unre' to format a subject line for a reply message.

```mh-format
%<{subject}Subject: Re: %(unre{subject})\n%>
```

--------------------------------

### Version 0.0 Dump Format Example

Source: https://mailutils.org/manual/html_node/Dump-Formats.html

This example shows the human-readable version 0.0 format for DBM databases containing only ASCII data. Records are key-value pairs separated by a TAB. It is suitable for input to the popauth utility.

```text
$ mailutils list /etc/mail/users.db
root	guessme
smith	pAssword
qed	fooBar

```

--------------------------------

### Example Help Output Excerpt

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

An excerpt from the 'sieve --help' output showing the format of options within a group: short option, long options, and description.

```text
  -c, --compile-only         Compile script and exit
  -d, --debug[=FLAGS]        Debug flags
  -e, --email=ADDRESS        Override user email address

```

--------------------------------

### Block Statement Example

Source: https://mailutils.org/manual/html_section/configuration.html

Provides an example of a block statement, which groups a sequence of statements within curly braces.

```plaintext
server srv1 {
  host 10.0.0.1;
  community "foo";
}

```

--------------------------------

### Starting Mail with Empty Mailbox

Source: https://mailutils.org/manual/html_node/Mail-Variables.html

If 'emptystart' is set, mail will start even if the mailbox is empty, overriding the default behavior of exiting immediately.

```mail
mail: _boolean_ **emptystart** ¶
      

Default: False
```

--------------------------------

### MDA DBM Quota Database Example

Source: https://mailutils.org/manual/html_section/mda.html

An example of a quota database in text format for mda, specifying default and user-specific mailbox size limits.

```text
# Default quota value:
DEFAULT         5mb

```

--------------------------------

### Verbose Configuration Parsing Output

Source: https://mailutils.org/manual/html_node/configuration.html

Example output when using the --config-verbose option to show parsing of configuration files.

```text
imap4d: parsing file `/etc/mailutils.conf'
imap4d: finished parsing file `/etc/mailutils.conf'

```

--------------------------------

### Spamd test connection example

Source: https://mailutils.org/manual/html_node/External-Tests.html

This example shows how to connect to the SpamAssassin daemon using the 'spamd' test to identify spam. It specifies the host and port for the daemon and uses 'discard' if the message is identified as spam.

```mailutils
request "test-spamd";

if spamd :host 127.0.0.1 :port 3333
  {
     discard;
  }
```

--------------------------------

### Run comsatd in preauth mode

Source: https://mailutils.org/manual/html_chapter/Programs.html

Use the --preauth option to start comsatd in preauth mode.

```bash
--preauth
```

--------------------------------

### Example: Reply Regex Configuration

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Example of setting a POSIX extended regular expression for identifying reply messages, accounting for different language prefixes.

```mh-format
%(reply_regex ^\(re|aw|ang|odp\)\[[0-9]+\]?:[[:blank:]])
```

--------------------------------

### IMAP LIST Command Example for Other Namespace

Source: https://mailutils.org/manual/html_node/Namespace.html

An example IMAP LIST command that would trigger the expansion of $user in the 'other' namespace configuration.

```imap
1 LIST "~smith" "%"

```

--------------------------------

### Examples of Valid Mail Message Lists

Source: https://mailutils.org/manual/html_node/Command-Syntax.html

Provides various examples of how to construct message lists for mail commands, including single messages, ranges, and complex criteria.

```text
3

```

```text
1-4 10

```

```text
4-*

```

```text
/watch

```

```text
/watch :/watch

```

```text
/watch :/watch $

```

```text
10.2

```

--------------------------------

### Sieve Extension Module Search Path Example

Source: https://mailutils.org/manual/mailutils.html

Illustrates the format for specifying multiple library search paths in environment variables for sieve extensions.

```shell
LTDL_LIBRARY_PATH=/usr/lib/mypkg:/lib/foo
LD_LIBRARY_PATH=/usr/lib/mypkg:/lib/foo
```

--------------------------------

### Version 1.0 Dump Format Header and Data Example

Source: https://mailutils.org/manual/html_node/Dump-Formats.html

This example demonstrates the version 1.0 dump format, which includes a header with file metadata and base64 encoded key-value pairs. Each data part is preceded by a #:len=n line indicating its length.

```text
# Database dump file created by GNU Mailutils 2.99.93 on
# Tue Nov  1 13:28:03 2011
#:version=1.0
#:file=users.db
#:uid=0,user=root,gid=25,group=mail,mode=640
#:len=6
c21pdGgA
#:len=9
cEFzc3dvcmQA
#:len=5
cm9vdAA=
#:len=8
Z3Vlc3NtZQA=
#:len=4
cWVkAA==
#:len=7
Zm9vQmFyAA==

```

--------------------------------

### Example Log Output with Locus

Source: https://mailutils.org/manual/html_node/mailutils-logger.html

Illustrates the log output format when the --locus option is used.

```text
mu-logger: mailutils.conf:34: Suspicious statement
```

--------------------------------

### Example comsatd test mode execution

Source: https://mailutils.org/manual/html_chapter/Programs.html

Demonstrates how to run comsatd in test mode with a mailbox and message QID. The optional file argument specifies an output log file.

```bash
$ comsatd --test /var/mail/root 34589
```

```bash
$ comsatd --test=logfile /var/mail/root 34589
```

```bash
$ comsatd -tlogfile /var/mail/root 34589
```

--------------------------------

### ACL Log Example

Source: https://mailutils.org/manual/html_section/configuration.html

This example demonstrates how to log all incoming connections using the 'log' control within an ACL. It's useful for tracking connection attempts, especially if you prefer the logging behavior of older Mailutils versions.

```mailutils
acl {
   log from any "Connect from ${address}";
   ...
}
```

--------------------------------

### Mailutils ACL Configuration Example

Source: https://mailutils.org/manual/html_node/mailutils-acl.html

Defines an Access Control List (ACL) within a configuration file. This example shows rules for denying specific IPs and subnets, logging connections, and allowing others.

```text
acl {
        deny from 10.10.10.1;
        deny from 10.10.1.0/24;
        log from any "Connect from ${address}";
        allow from 10.0.0.0/8;
        allow from 192.168.1.0/24;
        deny from any;
}

```

--------------------------------

### Verbose Mailutils Wicket Output Example

Source: https://mailutils.org/manual/html_section/mailutils.html

Example output from `mailutils wicket -v` showing the actual matched line from the ticket file. Passwords are replaced with asterisks for security.

```text
smtp://bar@gnu.org: /home/user/.mu-tickets:2: smtp://bar:***@gnu.org

```

--------------------------------

### Example of comma-separated level specifications

Source: https://mailutils.org/manual/html_node/Level-Syntax.html

This example demonstrates how to enable multiple levels within a category while excluding specific ones using a comma-separated list.

```plaintext
acl.prot,!=trace9,!trace2
```

--------------------------------

### Start TLS Negotiation

Source: https://mailutils.org/manual/html_section/mailutils.html

Initiates TLS negotiation after an unencrypted connection has been established.

```bash
stls
```

--------------------------------

### Example of dup-args=true

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

When `dup-args` is true, arguments for an option are shown with both short and long options, even if the option has both forms. This example illustrates the output.

```shell
  -e ADDRESS, --email=ADDRESS        Override user email address

```

--------------------------------

### Example Virtual Domain User Record

Source: https://mailutils.org/manual/html_node/virtdomain-statement.html

An example record from a virtual domain password file. This file must be in UNIX passwd format with encrypted passwords. The 6th field specifies the user's maildrop location.

```text
smith:Wbld/G2Q2Le2w:1000:1000:Email Account:/var/mail/domain/smith:/dev/null
```

--------------------------------

### Example: Conditional Reply Subject Prefix

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Example demonstrating how to conditionally prepend a reply prefix to a subject line based on whether it already contains one, using 'isreply' and profile variables.

```mh-format
%<{subject}%(lit)%<(isreply)%?\n%(profile reply-prefix)%(concat)%|%(concat Re:)%>
%(concat{subject})%(printhdr Subject: )\n%>
```

--------------------------------

### Create a database and copy permissions

Source: https://mailutils.org/manual/html_node/Create-a-Database.html

Use the --file and --copy-permissions options to create a database and apply the same metadata (owner UID, GID, and file mode) as the input file.

```bash
mailutils dbm create --file input.txt --copy-permissions file.db
```

--------------------------------

### Get Mailutils Version

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Returns the version of the Mailutils installation as a string.

```mh-format
string version()
```

--------------------------------

### List specific database entries by key

Source: https://mailutils.org/manual/html_node/List-the-Database.html

Provide specific keys as arguments after the database file to list only records matching those keys. This example shows listing records for 'foo' and 'bar'.

```bash
$ mailutils dbm list file.db foo bar
foo 1
bar 56
```

--------------------------------

### Mailutils ACL Debug Trace Example

Source: https://mailutils.org/manual/html_section/mailutils.html

Example output from `mailutils acl` with detailed debugging enabled. Shows the evaluation process for each ACL rule, including IP address matching and rule actions.

```text
Testing 127.0.0.1:
mailutils: Checking sockaddr 127.0.0.1
mailutils: 1:deny: Does 10.10.10.1/255.255.255.255 match 127.0.0.1? no; 
mailutils: 2:deny: Does 10.10.1.0/255.255.255.0 match 127.0.0.1? no; 
mailutils: 3:log: Does any match 127.0.0.1? yes; 
mailutils: Expanding "Connect from ${address}";
mailutils: Expansion: "Connect from 127.0.0.1";. 
mailutils: Connect from 127.0.0.1
mailutils: 4:accept: Does 10.0.0.0/255.0.0.0 match 127.0.0.1? no; 
mailutils: 5:accept: Does 192.168.0.0/255.255.0.0 match 127.0.0.1? no; 
mailutils: 6:deny: Does any match 127.0.0.1? yes; 
127.0.0.1: deny

```

--------------------------------

### Example Forward File Configuration

Source: https://mailutils.org/manual/html_node/Conf_002dmda.html

Defines the name of the forward file used for mail forwarding.

```plaintext
forward {
  file .forward;
}

```

--------------------------------

### Example Mailutils Command Usage

Source: https://mailutils.org/manual/html_node/Commands.html

Illustrates a specific Mailutils command with optional arguments and positional arguments, demonstrating how to specify MIME type and comparator.

```plaintext
header :mime :comparator "i;octet" ["to", "from"] "bug-mailutils@gnu.org"

```

--------------------------------

### List of Strings Example

Source: https://mailutils.org/manual/html_section/configuration.html

Shows a configuration statement where the value is a comma-separated list of strings enclosed in parentheses.

```plaintext
alias (test,null);

```

--------------------------------

### Header Test Examples

Source: https://mailutils.org/manual/mailutils.html

Demonstrates how the 'header' test evaluates based on the presence or absence of a specific header and its value. The first example checks for the exact presence of 'X-Caffeine' with an empty value, which evaluates to false. The second example checks if 'X-Caffeine' contains an empty string, evaluating to true.

```mailutils
header :is ["X-Caffeine"] [""] ⇒ false

```

```mailutils
header :contains ["X-Caffeine"] [""] ⇒ true

```

--------------------------------

### Mailutils ACL Test Output Example

Source: https://mailutils.org/manual/html_section/mailutils.html

Example output from the `mailutils acl` command when testing an IP address against a defined ACL. Shows the connection log message and the final access decision (deny/accept).

```text
Testing 127.0.0.1:
mailutils: Connect from 127.0.0.1
127.0.0.1: deny

```

--------------------------------

### Configure Mail to Start Even with Empty Mailbox

Source: https://mailutils.org/manual/html_section/mail.html

If the mailbox is empty, 'mail' normally exits immediately. Setting this option allows 'mail' to start regardless of whether the mailbox is empty.

```mail configuration
mail: _string_ **escape** ¶
```

--------------------------------

### Show Configuration File Summary

Source: https://mailutils.org/manual/html_node/Common-Options.html

Display a summary of the configuration file structure and available settings.

```bash
--config-help

```

--------------------------------

### Debug authentication and authorization with detailed flow trace

Source: https://mailutils.org/manual/html_section/debugging.html

This example shows the output for the 'auth' category at 'trace2' level, providing a detailed flow trace of authentication attempts and their results.

```text
pop3d: Trying generic...
pop3d: generic yields 38=Function not implemented
pop3d: Trying system...
pop3d: system yields 0=Success
pop3d: Trying generic...
pop3d: generic yields 4135=Authentication failed
pop3d: Trying system...
pop3d: system yields 0=Success
```

--------------------------------

### Get Full Package String

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Returns the full package string, including version information.

```mh-format
string package_string()
```

--------------------------------

### Sieve Test Example

Source: https://mailutils.org/manual/html_section/Syntax.html

Illustrates a basic Sieve test command 'header' to check for the presence of a substring in the 'From' header.

```Sieve
header :contains "from" "coyote"

```

--------------------------------

### Require Statement Examples

Source: https://mailutils.org/manual/html_node/Require-Statement.html

Illustrates different ways to use the 'require' statement, including specifying multiple capabilities, a single capability, and a comparator.

```mailutils-sieve
require ["fileinto", "reject"];

require "fileinto";

require "comparator-i;ascii-numeric";

```

--------------------------------

### Complex Configuration Example

Source: https://mailutils.org/manual/html_node/Paths.html

Provides a more complex configuration structure involving nested blocks and tagged statements.

```mailutils
program pop3d {
    logging {
       facility mail;
    }
    server 0.0.0.0 {
       transcript no;
    }
}

```

--------------------------------

### Mailutils Wicket Lookup Result Example

Source: https://mailutils.org/manual/html_section/mailutils.html

Example output from `mailutils wicket` showing a URL match in the ticket file. Indicates the matched URL, the ticket file path, and the line number of the match.

```text
smtp://bar@gnu.org: /home/user/.mailutils-tickets:2

```

--------------------------------

### Debug authentication and authorization with user data

Source: https://mailutils.org/manual/html_section/debugging.html

This example shows the output format for the 'auth' category at 'trace0' level, reporting user data and their source. It includes details like username, UID, GID, and directory.

```text
pop3d: source=system, name=gray, passwd=x, uid=120, gid=100,
gecos=Sergey Poznyakoff, dir=/home/gray, shell=/bin/bash,
mailbox=/var/mail/gray, quota=0, change_uid=1
```

--------------------------------

### Setting short-opt-col

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

Demonstrates how to change the starting column for short options using the `ARGP_HELP_FMT` environment variable. The default is 2.

```shell
$ `sieve --help|grep ADDRESS`
  -e, --email=ADDRESS        Override user email address
$ `ARGP_HELP_FMT=short-opt-col=6 sieve --help|grep ARCHIVE`
      -e, --email=ADDRESS        Override user email address

```

--------------------------------

### Multiline String Example

Source: https://mailutils.org/manual/html_node/Lexical-Structure.html

Illustrates how to define a multiline string in Mailutils, which is useful for large blocks of text with embedded newlines and special characters. It starts with 'text:' and ends with a '.' on a new line.

```mailutils
text:
** This is an automatic response from my message **
** filtering program.                            **

I can not attend your message right now.  However it
will be saved, and I will read it as soon as I am back.

Regards,
Fred
.

```

--------------------------------

### Example: Determining Sender Address (From)

Source: https://mailutils.org/manual/html_node/Replying.html

Demonstrates setting the sender list to 'From' after clearing it, resulting in the 'From' address being used as the sender address for replies.

```shell
# Clear the sender list
? nosender
# Set new sender list
? sender From


```

```shell
? reply
To: Antonius Block <block@helsingor.org>
Subject: Re: News



```

--------------------------------

### Setting doc-opt-col

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

Shows how to set the column where 'doc options' (arbitrary documentation strings) begin in help output. This example uses `ARGP_HELP_FMT=doc-opt-col=6`.

```shell
Usage: folder [OPTION...] [action] [msg]
GNU MH folder
      Actions are:
      --list                 List the contents of the folder stack
  ...

```

--------------------------------

### Example of detailed flow trace in auth.trace2

Source: https://mailutils.org/manual/mailutils.html

Demonstrates the detailed flow trace output for authentication and authorization when using the 'auth.trace2' level. Shows attempts to connect to different authentication methods and their results.

```text
pop3d: Trying generic...
pop3d: generic yields 38=Function not implemented
pop3d: Trying system...
pop3d: system yields 0=Success
pop3d: Trying generic...
pop3d: generic yields 4135=Authentication failed
pop3d: Trying system...
pop3d: system yields 0=Success

```

--------------------------------

### Display Help Summary

Source: https://mailutils.org/manual/html_node/Common-Options.html

Use this option to display a short summary of command-line options and their descriptions. The output includes a usage synopsis, an option summary, and bug reporting information.

```bash
Usage: sieve [OPTION...] SCRIPT
GNU sieve -- a mail filtering tool

```

```bash
  -c, --compile-only         Compile script and exit
  -d, --debug[=FLAGS]        Debug flags
  -e, --email=ADDRESS        Override user email address

```

--------------------------------

### Run pop3d in Inetd Mode

Source: https://mailutils.org/manual/html_section/pop3d.html

Starts the pop3d server in inetd mode, typically managed by the inetd super-server.

```bash
-i
--inetd
```

--------------------------------

### Example: Determining Sender Address (From)

Source: https://mailutils.org/manual/html_section/mail.html

Demonstrates setting the 'sender' list to 'From' to ensure the 'From' address is used as the sender when replying.

```mail
# Clear the sender list
? nosender
# Set new sender list
? sender From

```

```mail
? reply
To: Antonius Block <block@helsingor.org>
Subject: Re: News



```

--------------------------------

### LDAP Field Mapping Example

Source: https://mailutils.org/manual/html_section/configuration.html

Defines a map for parsing LDAP replies, specifying how to obtain user information like name, password, UID, and home directory. This example shows how to use LDAP attributes and immediate values for configuration.

```mailutils
("name=uid",
   "passwd=userPassword",
   "uid=uidNumber",
   "gid=gidNumber",
   "gecos=gecos",
   "dir=homeDirectory",
   "shell=loginShell")
```

--------------------------------

### Example Local Mailbox URL

Source: https://mailutils.org/manual/html_chapter/Mailbox.html

An example of a URL identifying a local mailbox using the 'mbox' type.

```text
mbox:///var/spool/mail/gray
```

--------------------------------

### Make guimb Scripts Executable

Source: https://mailutils.org/manual/html_section/guimb.html

Example of shell script header to make a `guimb` Scheme script directly executable.

```shell
#! /usr/local/bin/guimb -s
!#

```

--------------------------------

### Version 1.0 Database Dump Format Example

Source: https://mailutils.org/manual/html_section/mailutils.html

An example of the version 1.0 dump format for DBM databases. This format includes a header with file metadata and uses base64 encoding for record data, supporting binary data and special characters.

```text
# Database dump file created by GNU Mailutils 2.99.93 on
# Tue Nov  1 13:28:03 2011
#:version=1.0
#:file=users.db
#:uid=0,user=root,gid=25,group=mail,mode=640
#:len=6
c21pdGgA
#:len=9
cEFzc3dvcmQA
#:len=5
cm9vdAA=
#:len=8
Z3Vlc3NtZQA=
#:len=4
cWVkAA==
#:len=7
Zm9vQmFyAA==
```

--------------------------------

### Create a new database

Source: https://mailutils.org/manual/html_node/Create-a-Database.html

Use the 'create' subcommand to initialize a new database file. The database file will be truncated if it already exists.

```bash
mailutils dbm create file.db
```

--------------------------------

### Create a database from standard input

Source: https://mailutils.org/manual/html_node/Create-a-Database.html

Populate the database with data read from standard input. Each line in the input should contain a key and a value separated by whitespace.

```bash
mailutils dbm create file.db < input.txt
```

--------------------------------

### Get System Configuration Directory

Source: https://mailutils.org/manual/html_node/configuration.html

Use this command to retrieve the system configuration directory path. This is where the main site-wide configuration file is located.

```bash
$ mailutils info sysconfdir

```

```bash
$ prog --show-config-options | grep SYSCONFDIR

```

--------------------------------

### List Server Capabilities

Source: https://mailutils.org/manual/html_chapter/Programs.html

Requests and displays the server's capabilities.

```bash
smtp command: **capa** _[ name...]_
```

--------------------------------

### List all mailutils help options

Source: https://mailutils.org/manual/html_node/mailutils-help.html

Use the 'mailutils help' command to display a list of all available options and command names with their descriptions.

```bash
mailutils help

```

--------------------------------

### RADIUS Attribute Assignment Example

Source: https://mailutils.org/manual/html_node/radius-statement.html

Example of an attribute-value pair assignment for a RADIUS request, showing symbolic attribute names and values.

```radius-config
"Service-Type = Authenticate-Only, NAS-Identifier = \"mail\""

```

--------------------------------

### Specifying a Configuration File with --file

Source: https://mailutils.org/manual/html_node/mailutils-query.html

Use the --file or -f option to specify an alternative configuration file instead of the default main configuration file.

```bash
$ mailutils query --file /usr/local/etc/file.conf .pidfile

```

--------------------------------

### Example: Recipient Check in Format

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Example showing how to use the 'rcpt' function to check for the presence of a 'to' recipient in a format string.

```mh-format
%(lit)%<(rcpt to)%(formataddr{to})%>
```

--------------------------------

### Get Core Mailutils Linker Flags

Source: https://mailutils.org/manual/html_node/mailutils-ldflags.html

Use this command without arguments to get the linker flags for the core Mailutils library.

```bash
$ mailutils ldflags
-L/usr/local/lib -lmailutils 

```

--------------------------------

### Example of user data in auth.trace0

Source: https://mailutils.org/manual/mailutils.html

Illustrates the output format for user data when debugging authentication and authorization with the 'auth.trace0' level. Shows details like username, UID, GID, and home directory.

```text
pop3d: source=system, name=gray, passwd=x, uid=120, gid=100,
gecos=Sergey Poznyakoff, dir=/home/gray, shell=/bin/bash,
mailbox=/var/mail/gray, quota=0, change_uid=1

```

--------------------------------

### SMTP Authentication Example

Source: https://mailutils.org/manual/html_chapter/Mailbox.html

Illustrates how to specify ESMTP authentication mechanisms in the SMTP URL, prioritizing 'cram-md5' over 'digest-md5'.

```plaintext
smtp://smith:guessme;auth=cram-md5,digest-md5@localhost
```

--------------------------------

### Personal Namespace Directory Mapping Example

Source: https://mailutils.org/manual/html_node/Namespace.html

Maps the default personal namespace prefix to a directory within the user's home directory.

```text
namespace personal {
  prefix "";
  directory "$home/imap";
}

```

--------------------------------

### Setting long-opt-col

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

Illustrates adjusting the starting column for long options using `ARGP_HELP_FMT`. The default is 6.

```shell
$ `sieve --help|grep ADDRESS`
  -e, --email=ADDRESS        Override user email address
$ `ARGP_HELP_FMT=long-opt-col=16 sieve --help|grep ADDRESS`
  -e,           --email=ADDRESS        Override user email address

```

--------------------------------

### Create Database from Input File

Source: https://mailutils.org/manual/html_chapter/Programs.html

Redirect data from a file to standard input for database creation. Alternatively, use the --file option.

```bash
mailutils dbm create file.db < input.txt
```

```bash
mailutils dbm create --file input.txt file.db
```

--------------------------------

### Action Commands

Source: https://mailutils.org/manual/html_chapter/Sieve-Language.html

Shows examples of Sieve action commands, which perform operations on messages and are terminated by a semicolon.

```Sieve
keep;
```

```Sieve
fileinto "mbox";
```

--------------------------------

### Block Statement Example

Source: https://mailutils.org/manual/html_node/Statements.html

Demonstrates a block statement, which groups a keyword, optional value, and a sequence of statements enclosed in curly braces.

```mailutils
server srv1 {
  host 10.0.0.1;
  community "foo";
}
```

--------------------------------

### Create a database using the --file option

Source: https://mailutils.org/manual/html_node/Create-a-Database.html

The --file option provides an alternative to input redirection for specifying the input data file. This command is equivalent to using input redirection.

```bash
mailutils dbm create --file input.txt file.db
```

--------------------------------

### imap4d inetd Configuration

Source: https://mailutils.org/manual/html_node/Starting-imap4d.html

This is an example configuration line for /etc/inetd.conf to run imap4d in inetd mode. It specifies the service, protocol, and the command to execute.

```shell
imap4  stream tcp nowait  root  /usr/local/sbin/imap4d imap4d

```

--------------------------------

### Mail Command File Settings

Source: https://mailutils.org/manual/html_node/Mail-Configuration-Files.html

Example of a mail command file using 'set' and 'retain' statements to configure mail behavior. These files are read after standard Mailutils configuration.

```mail
set hold emptystart editheaders
retain from to subject reply-to in-reply-to date
alt user@example.org

```

--------------------------------

### Mailutils Debug Level Syntax Example

Source: https://mailutils.org/manual/html_chapter/Programs.html

An example of specifying debug levels for a category, enabling all levels except trace9, trace0, trace1, and trace2.

```mailutils
acl.prot,!=trace9,!trace2

```

--------------------------------

### Get System Configuration Directory

Source: https://mailutils.org/manual/html_chapter/Programs.html

Use this command to determine the system configuration directory path for Mailutils.

```bash
$ mailutils info sysconfdir

```

--------------------------------

### Mailutils Configuration with Tagged Server

Source: https://mailutils.org/manual/mailutils.html

Example Mailutils configuration file containing a tagged server statement.

```mailutils
program pop3d {
    logging {
       facility mail;
    }
    server 0.0.0.0 {
       transcript no;
    }
}


```

--------------------------------

### Example: Setting Sender Field Preference

Source: https://mailutils.org/manual/html_chapter/Programs.html

Illustrates how to clear the sender list and set a new preference ('From') for determining the sender address.

```mail
# Clear the sender list
? nosender
# Set new sender list
? sender From


```

```mail
? reply
To: Antonius Block <Antonius Block <block@helsingor.org>>
Subject: Re: News



```

--------------------------------

### Control option description column in help output

Source: https://mailutils.org/manual/html_node/Usage-Vars.html

Sets the starting column for option descriptions. The default is 29. If the value is too small, descriptions may wrap to a new line.

```bash
$ `sieve --help|grep ADDRESS`
  -e, --email=ADDRESS        Override user email address
```

```bash
$ `ARGP_HELP_FMT=opt-doc-col=19 sieve --help|grep ADDRESS`
  -e, --email=ADDRESS   Override user email address
```

```bash
$ `ARGP_HELP_FMT=opt-doc-col=9 sieve --help|grep -i ADDRESS`
  -e, --email=ADDRESS
         Override user email address
```

--------------------------------

### Example: Determining Sender Address (Reply-To)

Source: https://mailutils.org/manual/html_node/Replying.html

Illustrates how the 'mail' utility determines the sender address, prioritizing 'Reply-To' over 'From' in this specific scenario.

```shell
U  1 block@helsingor.org  Fri Jun 30 18:30  8/245    Re: The Sa
? Print 1
From: Antonius Block <block@helsingor.org>
To: Smeden Plog <plog@helsingor.org>
Date: Tue, 27 Apr 2004 13:23:41 +0300
Reply-To: <root@helsingor.org>
Subject: News

Hi


```

```shell
? sender mail-followup-to reply-to from
? reply
To: <root@helsingor.org>
Subject: Re: News



```

--------------------------------

### Sieve Action Commands

Source: https://mailutils.org/manual/html_section/Syntax.html

Shows examples of Sieve action commands, which perform operations on messages and are terminated by a semicolon.

```Sieve
keep;

```

```Sieve
fileinto "mbox";

```

--------------------------------

### Boolean Assignment Example (True)

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

Demonstrates how to assign a 'true' value to a boolean variable by simply stating the variable name.

```text
dup-args

```

--------------------------------

### Field Map Example

Source: https://mailutils.org/manual/html_node/sql-statement.html

Demonstrates how to use the `field-map` statement to alias column names returned by SQL queries, similar to the SQL `AS` keyword.

```mailutils
field-map (uid=user_id);

```

--------------------------------

### Show Configuration Options

Source: https://mailutils.org/manual/html_node/Common-Options.html

Use this option to display configuration options used during package compilation. This helps verify if specific features or mailbox format support are included in the binary.

```bash
--show-config-options

```

--------------------------------

### Other Namespace Directory Mapping Example

Source: https://mailutils.org/manual/html_node/Namespace.html

Configures the 'other' namespace to map a prefix to a directory structure that uses the target user's login name.

```text
namespace other {
  prefix "~";
  directory "/var/imap/$user";
}  

```

--------------------------------

### Example of dup-args=false

Source: https://mailutils.org/manual/html_chapter/Usage-Vars.html

When `dup-args` is false, arguments for an option are only shown with the long option if both short and long forms exist. This example shows the output format.

```shell
  -e, --email=ADDRESS        Override user email address

```

--------------------------------

### Control doc option column in help output

Source: https://mailutils.org/manual/html_node/Usage-Vars.html

Sets the starting column for 'doc options' (arbitrary documentation text) in the help output. This allows custom documentation to be aligned with options.

```bash
Usage: folder [OPTION...] [action] [msg]
GNU MH folder
  Actions are:
      --list                 List the contents of the folder stack
  ...

```

```bash
$ `ARGP_HELP_FMT=doc-opt-col=6`
Usage: folder [OPTION...] [action] [msg]
GNU MH folder
      Actions are:
      --list                 List the contents of the folder stack
  ...

```

--------------------------------

### POP3d Startup Error Message

Source: https://mailutils.org/manual/html_node/Login-delay.html

This message is logged via syslog if pop3d cannot access the statistics database for reading and writing, causing it to start without login delay restrictions.

```text
Unable to open statistics db: Operation not permitted
```

--------------------------------

### Control short option column in help output

Source: https://mailutils.org/manual/html_node/Usage-Vars.html

Sets the starting column for short options in the help message. The default is 2. This allows for precise alignment of short options.

```bash
$ `sieve --help|grep ADDRESS`
  -e, --email=ADDRESS        Override user email address
```

```bash
$ `ARGP_HELP_FMT=short-opt-col=6 sieve --help|grep ARCHIVE`
      -e, --email=ADDRESS        Override user email address
```

--------------------------------

### Display Help Information

Source: https://mailutils.org/manual/html_section/mailutils.html

Retrieves a list of available commands and their descriptions, or a specific description for a given command.

```shell
help [command]

```

```shell
? [command]

```

--------------------------------

### Generate Default Configuration File

Source: https://mailutils.org/manual/html_node/configuration.html

Use the --config-help option to generate a default configuration file for a utility. This is useful for creating a base configuration to edit.

```bash
$ imap4d --config-help > imap4d.conf
```

--------------------------------

### Get help for a specific mailutils command

Source: https://mailutils.org/manual/html_node/mailutils-help.html

To get detailed help for a specific command, provide the command name as an argument to 'mailutils help'. This is equivalent to using the --help option with that command.

```bash
mailutils help ldflags

```

--------------------------------

### SQL Table Schema for Mailbox Quotas

Source: https://mailutils.org/manual/html_section/mda.html

Example SQL CREATE TABLE statement for storing user quotas. The table includes columns for username and quota size.

```sql
create table mailbox_quota (
  user_name varchar(32) binary not null,
  quota int,
  unique (user_name)
);
```

--------------------------------

### Load Custom Configuration File

Source: https://mailutils.org/manual/html_node/Common-Options.html

Specify a custom configuration file to load instead of the default one.

```bash
--config-file=file

```

--------------------------------

### Renumber Messages Starting from 1

Source: https://mailutils.org/manual/html_node/Diffs.html

Use the 'folder -pack=1' command to renumber all messages in the current folder, starting from sequence number 1. This is useful if the monotonic sequence numbering behavior is undesirable.

```shell
folder -pack=1

```

--------------------------------

### List Server Capabilities

Source: https://mailutils.org/manual/html_section/mailutils.html

Lists all server capabilities. If specific capability names are provided, only those are displayed. By default, it reuses the previous response.

```bash
capa
```

--------------------------------

### Namespace Configuration Example

Source: https://mailutils.org/manual/html_section/imap4d.html

Defines a 'personal' namespace with two prefixes. The empty prefix supports any mailbox type, while the '#MH:' prefix is restricted to 'mh' mailbox types.

```mailutils
namespace personal {
   prefix "" {
      directory "$home/mailfolder";
   }
   prefix "#MH:" {
      directory "$home/Mail";
      delimiter "/";
      mailbox-type "mh";
   }
}
```

--------------------------------

### Equivalent Configuration Statement

Source: https://mailutils.org/manual/html_node/Paths.html

Shows the configuration file equivalent of the --set command.

```mailutils
logging {
    facility mail;
}

```

--------------------------------

### List Specific Server Capabilities

Source: https://mailutils.org/manual/html_section/mailutils.html

Lists specific server capabilities. If capability names are provided, only those are displayed.

```bash
capa -reread STARTTLS LOGOUT
```

--------------------------------

### Mail Command for Multipart Message Part

Source: https://mailutils.org/manual/html_node/Command-Syntax.html

Demonstrates how to specify a particular part of a multipart message. This example targets part 1 of message 4.

```text
write 4.1

```

--------------------------------

### Querying Single and Multiple Values

Source: https://mailutils.org/manual/html_node/mailutils-query.html

Demonstrates how to query single and multiple configuration values using their statement paths. If a requested value is a block statement, it is displayed in full.

```bash
$ mailutils query .logging.syslog
syslog yes;

```

```bash
$ mailutils query .logging.syslog .logging.facility
syslog yes;
facility mail;

```

```bash
$ mailutils query .logging
logging {
  syslog yes;
  facility mail;
};

```

--------------------------------

### Example of Date Formatting in Mail Headers

Source: https://mailutils.org/manual/html_section/mail.html

Shows a date format string for mail headers: abbreviated weekday name, abbreviated month name, day of the month, followed by hour and minutes.

```mail date format example
%a %b %e %H:%M
```

--------------------------------

### Namespace Configuration Block Syntax

Source: https://mailutils.org/manual/html_node/Namespace.html

Illustrates the general syntax for configuring namespaces using the 'namespace' block statement.

```text
namespace name {
    mailbox-mode mode;
    prefix pfx {
      directory path;
      delimiter chr;
      mailbox-type type;
    }
}

```

--------------------------------

### Standard Time Formats

Source: https://mailutils.org/manual/html_node/Time-of-day-items.html

Examples of common formats for specifying time of day, including hours, minutes, seconds, and fractional seconds. Time zone offsets can also be appended.

```text
20:02:00.000000
```

```text
20:02
```

```text
8:02pm
```

```text
20:02-0500
```

--------------------------------

### Setting Configuration Variable via --set

Source: https://mailutils.org/manual/html_node/Paths.html

Demonstrates using the --set command-line option to override configuration values.

```bash
--set .logging.facility=mail

```

--------------------------------

### List all database entries

Source: https://mailutils.org/manual/html_node/List-the-Database.html

Use this command to display the entire content of a database file on standard output.

```bash
mailutils dbm list file.db
```

--------------------------------

### Get All Mailutils Libraries Linker Flags

Source: https://mailutils.org/manual/html_node/mailutils-ldflags.html

Use the 'all' keyword to link with all available Mailutils libraries. This includes support for various formats, protocols, authentication, and external dependencies.

```bash
$ mailutils ldflags all
-L/usr/local/lib -lmu_mbox -lmu_mh -lmu_maildir -lmu_imap -lmu_pop \
-lmu_mailer -lmu_compat -lmailutils -lmu_auth -lgsasl -lgnutls -lgcrypt \
-lldap -lgnuradius -lpam -ldl 

```

--------------------------------

### Configuring DEFAULT_CUPS_CONFDIR

Source: https://mailutils.org/manual/html_node/mimeview.html

This example demonstrates how to set the DEFAULT_CUPS_CONFDIR environment variable during the configure step to specify the location of the cups configuration directory. This is typically used to set the default location for mime.types files.

```shell
./configure DEFAULT_CUPS_CONFDIR=/etc/cups

```

--------------------------------

### Reject Action with Included File

Source: https://mailutils.org/manual/html_node/Built_002din-Actions.html

For long rejection reasons, use 'text:' and '#include' to specify a file containing the reason. This example demonstrates rejecting messages based on content type.

```sieve
if header :mime :matches "Content-Type"
          [ "*application/msword;*", "*audio/x-midi*" ]
  {
    reject text:
#include "nomsword.txt"
    .
    ;
  }

```

--------------------------------

### Get Mailbox Statistics

Source: https://mailutils.org/manual/html_section/mailutils.html

Retrieves the mailbox size and the number of messages in it.

```bash
stat
```

--------------------------------

### Generating Standard Date Formats with `date`

Source: https://mailutils.org/manual/html_chapter/Date-Input-Formats.html

Demonstrates how to use the `date` command to output dates in various standard and machine-readable formats, including ISO 8601 and RFC 2822. These examples are useful for generating date strings that can be reliably parsed by other programs.

```bash
$ LC_ALL=C TZ=UTC0 date
Mon Mar  1 00:21:42 UTC 2004
```

```bash
$ TZ=UTC0 date +'%Y-%m-%d %H:%M:%SZ'
2004-03-01 00:21:42Z
```

```bash
$ date --iso-8601=ns | tr T ' '  # --iso-8601 is a GNU extension.
2004-02-29 16:21:42,692722128-0800
```

```bash
$ date --rfc-2822  # a GNU extension
Sun, 29 Feb 2004 16:21:42 -0800
```

```bash
$ date +'%Y-%m-%d %H:%M:%S %z'  # %z is a GNU extension.
2004-02-29 16:21:42 -0800
```

```bash
$ date +'@%s.%N'  # %s and %N are GNU extensions.
@1078100502.692722128
```

--------------------------------

### Get Package Name

Source: https://mailutils.org/manual/html_node/Format-String-Diffs.html

Returns the package name 'mailutils' as a string.

```mh-format
string package()
```

--------------------------------

### Configuration: homedir Statement Syntax

Source: https://mailutils.org/manual/html_section/configuration.html

Configures the creation and file mode for user home directories. The 'create' option determines if the directory is made, and 'mode' sets its permissions.

```plaintext
homedir {
  # Create user home directory if needed.
  create bool;
  # File mode for newly created directories.  
  mode octal;
}
```

--------------------------------

### Logging from a File

Source: https://mailutils.org/manual/html_node/mailutils-logger.html

Log each line from a specified file.

```bash
# Log each line from file.txt
$ mailutils logger --file file.txt
```

--------------------------------

### Set debugging levels with exclusions and category-specific settings

Source: https://mailutils.org/manual/html_section/debugging.html

This example sets all debugging levels except 'prot' in all categories, excluding 'mailer', and sets all levels in 'auth'. The 'mailer' category is disabled.

```text
all.!=prot;!mailer;auth
```

--------------------------------

### Sieve Require Statement Examples

Source: https://mailutils.org/manual/html_chapter/Sieve-Language.html

Illustrates various ways to use the 'require' statement to declare dependencies on actions, comparators, or tests. This includes specifying multiple capabilities, a single capability, and a specific comparator.

```sieve
require ["fileinto", "reject"];
```

```sieve
require "fileinto";
```

```sieve
require "comparator-i;ascii-numeric";
```

--------------------------------

### List Statement

Source: https://mailutils.org/manual/html_node/Statements.html

Example of a statement where the value is a comma-separated list of strings enclosed in parentheses.

```mailutils
alias (test,null);
```

--------------------------------

### Here-Document Example

Source: https://mailutils.org/manual/html_node/Statements.html

Demonstrates the use of a here-document to introduce strings containing embedded newlines.

```mailutils
<<EOT
A multiline
string
EOT
```

--------------------------------

### Multi-line Comments

Source: https://mailutils.org/manual/html_node/Comments.html

Use '/*' to start a multi-line comment and '*/' to end it. These comments cannot be nested.

```config
/* This is a multi-line comment */
```

--------------------------------

### Python Mail Filter Example

Source: https://mailutils.org/manual/mailutils.html

A sample Python script demonstrating a mail filter. It checks for specific headers and sender patterns to process and append messages to a designated mailbox.

```python
from mailutils import *
import maidag
import re

msg = message.Message (maidag.message)
hdr = msg.header

try:
    if 'List-Post' in hdr and 'Received' in hdr \
       and hdr['Received'].find ('fencepost.gnu.org') != -1:

        # check envelope's sender address
        m = re.search (r'([\w\-]+)-bounces\+([\w]+)=.*',
                       msg.envelope.get_sender ())
        if m:
            lbox = m.group (1)
            user = m.group (2)
            # open destination mailbox and append message
            dst = mailbox.MailboxDefault ('~/Mail/%s' % lbox)
            dst.open ('ac')
            dst.append_message (msg)
            dst.close ()
            # set deleted flag so maidag will not deliver msg elsewhere
            msg.attribute.set_deleted ()
except Exception:
    pass

```

--------------------------------

### Compose Mail - Getting Help

Source: https://mailutils.org/manual/html_section/mail.html

Displays a list of available compose escape commands and their descriptions.

```mail-compose
~?
```
Tokens:
Raw