125 lines
3.7 KiB
Groff
125 lines
3.7 KiB
Groff
.TH SHOWQ 8
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.ad
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.fi
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.SH NAME
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showq
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\-
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list the Postfix mail queue
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.SH "SYNOPSIS"
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.na
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.nf
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\fBshowq\fR [generic Postfix daemon options]
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.SH DESCRIPTION
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.ad
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.fi
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The \fBshowq\fR(8) daemon reports the Postfix mail queue status.
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The output is meant to be formatted by the postqueue(1) command,
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as it emulates the Sendmail `mailq' command.
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The \fBshowq\fR(8) daemon can also be run in stand\-alone mode
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by the superuser. This mode of operation is used to emulate
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the `mailq' command while the Postfix mail system is down.
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.SH "SECURITY"
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.na
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.nf
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.ad
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.fi
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The \fBshowq\fR(8) daemon can run in a chroot jail at fixed low
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privilege, and takes no input from the client. Its service port
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is accessible to local untrusted users, so the service can be
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susceptible to denial of service attacks.
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.SH "STANDARDS"
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.na
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.nf
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.ad
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.fi
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None. The \fBshowq\fR(8) daemon does not interact with the
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outside world.
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.SH DIAGNOSTICS
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.ad
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.fi
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Problems and transactions are logged to \fBsyslogd\fR(8)
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or \fBpostlogd\fR(8).
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.SH "CONFIGURATION PARAMETERS"
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.na
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.nf
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.ad
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.fi
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Changes to \fBmain.cf\fR are picked up automatically as \fBshowq\fR(8)
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processes run for only a limited amount of time. Use the command
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"\fBpostfix reload\fR" to speed up a change.
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The text below provides only a parameter summary. See
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\fBpostconf\fR(5) for more details including examples.
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.IP "\fBconfig_directory (see 'postconf -d' output)\fR"
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The default location of the Postfix main.cf and master.cf
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configuration files.
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.IP "\fBdaemon_timeout (18000s)\fR"
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How much time a Postfix daemon process may take to handle a
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request before it is terminated by a built\-in watchdog timer.
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.IP "\fBduplicate_filter_limit (1000)\fR"
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The maximal number of addresses remembered by the address
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duplicate filter for \fBaliases\fR(5) or \fBvirtual\fR(5) alias expansion, or
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for \fBshowq\fR(8) queue displays.
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.IP "\fBempty_address_recipient (MAILER\-DAEMON)\fR"
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The recipient of mail addressed to the null address.
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.IP "\fBipc_timeout (3600s)\fR"
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The time limit for sending or receiving information over an internal
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communication channel.
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.IP "\fBmax_idle (100s)\fR"
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The maximum amount of time that an idle Postfix daemon process waits
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for an incoming connection before terminating voluntarily.
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.IP "\fBmax_use (100)\fR"
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The maximal number of incoming connections that a Postfix daemon
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process will service before terminating voluntarily.
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.IP "\fBprocess_id (read\-only)\fR"
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The process ID of a Postfix command or daemon process.
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.IP "\fBprocess_name (read\-only)\fR"
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The process name of a Postfix command or daemon process.
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.IP "\fBqueue_directory (see 'postconf -d' output)\fR"
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The location of the Postfix top\-level queue directory.
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.IP "\fBsyslog_facility (mail)\fR"
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The syslog facility of Postfix logging.
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.IP "\fBsyslog_name (see 'postconf -d' output)\fR"
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A prefix that is prepended to the process name in syslog
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records, so that, for example, "smtpd" becomes "prefix/smtpd".
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.PP
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Available in Postfix version 2.9 and later:
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.IP "\fBenable_long_queue_ids (no)\fR"
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Enable long, non\-repeating, queue IDs (queue file names).
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.PP
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Available in Postfix 3.3 and later:
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.IP "\fBservice_name (read\-only)\fR"
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The master.cf service name of a Postfix daemon process.
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.SH "FILES"
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.na
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.nf
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/var/spool/postfix, queue directories
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.SH "SEE ALSO"
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.na
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.nf
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pickup(8), local mail pickup service
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cleanup(8), canonicalize and enqueue mail
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qmgr(8), queue manager
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postconf(5), configuration parameters
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master(8), process manager
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postlogd(8), Postfix logging
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syslogd(8), system logging
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.SH "LICENSE"
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.na
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.nf
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.ad
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.fi
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The Secure Mailer license must be distributed with this software.
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.SH "AUTHOR(S)"
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.na
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.nf
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Wietse Venema
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IBM T.J. Watson Research
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P.O. Box 704
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Yorktown Heights, NY 10598, USA
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Wietse Venema
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Google, Inc.
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111 8th Avenue
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New York, NY 10011, USA
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