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