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SHOWQ(8)		    System Manager's Manual		      SHOWQ(8)

NAME
       showq - list the	Postfix	mail queue

SYNOPSIS
       showq [generic Postfix daemon options]

DESCRIPTION
       The  showq(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  showq(8)  daemon  can also be run in stand-alone mode by the supe-
       ruser. This mode	of operation is	used to	emulate	 the  `mailq'  command
       while the Postfix mail system is	down.

SECURITY
       The  showq(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.

STANDARDS
       None. The showq(8) daemon does not interact with	the outside world.

DIAGNOSTICS
       Problems	and transactions are logged to syslogd(8) or postlogd(8).

CONFIGURATION PARAMETERS
       Changes to main.cf are picked up	automatically  as  showq(8)  processes
       run for only a limited amount of	time. Use the command "postfix reload"
       to speed	up a change.

       The text	below provides only a parameter	summary. See  postconf(5)  for
       more details including examples.

       config_directory	(see 'postconf -d' output)
	      The  default  location of	the Postfix main.cf and	master.cf con-
	      figuration files.

       daemon_timeout (18000s)
	      How much time a Postfix daemon process may take to handle	a  re-
	      quest before it is terminated by a built-in watchdog timer.

       duplicate_filter_limit (1000)
	      The maximal number of addresses remembered by the	address	dupli-
	      cate filter for aliases(5) or virtual(5) alias expansion,	or for
	      showq(8) queue displays.

       empty_address_recipient (MAILER-DAEMON)
	      The recipient of mail addressed to the null address.

       ipc_timeout (3600s)
	      The  time	limit for sending or receiving information over	an in-
	      ternal communication channel.

       max_idle	(100s)
	      The maximum amount of time that an idle Postfix  daemon  process
	      waits for	an incoming connection before terminating voluntarily.

       max_use (100)
	      The maximal number of incoming connections that a	Postfix	daemon
	      process will service before terminating voluntarily.

       process_id (read-only)
	      The process ID of	a Postfix command or daemon process.

       process_name (read-only)
	      The process name of a Postfix command or daemon process.

       queue_directory (see 'postconf -d' output)
	      The location of the Postfix top-level queue directory.

       syslog_facility (mail)
	      The syslog facility of Postfix logging.

       syslog_name (see	'postconf -d' output)
	      A	prefix that  is	 prepended  to	the  process  name  in	syslog
	      records, so that,	for example, "smtpd" becomes "prefix/smtpd".

       Available in Postfix version 2.9	and later:

       enable_long_queue_ids (no)
	      Enable long, non-repeating, queue	IDs (queue file	names).

       Available in Postfix 3.3	and later:

       service_name (read-only)
	      The master.cf service name of a Postfix daemon process.

FILES
       /var/spool/postfix, queue directories

SEE ALSO
       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

LICENSE
       The Secure Mailer license must be distributed with this software.

AUTHOR(S)
       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

								      SHOWQ(8)

NAME | SYNOPSIS | DESCRIPTION | SECURITY | STANDARDS | DIAGNOSTICS | CONFIGURATION PARAMETERS | FILES | SEE ALSO | LICENSE | AUTHOR(S)

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