SHOWQ(8)                                                              SHOWQ(8)

       showq - list the Postfix mail queue

       showq [generic Postfix daemon options]

       The  showq(8)  daemon reports the Postfix mail queue status.  It is the
       program that 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.

       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.

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

       Problems and transactions are logged to syslogd(8).

       Changes  to  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 and  con-
              figuration files.

       daemon_timeout (18000s)
              How  much  time  a  Postfix  daemon process may take to handle a
              request 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
              internal 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)
              The mail system name that is prepended to the  process  name  in
              syslog  records,  so  that  "smtpd" becomes, for example, "post-

       Available in Postfix version 2.9 and later:

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

       /var/spool/postfix, queue directories

       pickup(8), local mail pickup service
       cleanup(8), canonicalize and enqueue mail
       qmgr(8), queue manager
       postconf(5), configuration parameters
       master(8), process manager
       syslogd(8), system logging

       The Secure Mailer license must be distributed with this software.

       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA