Provided by: postfix_2.2.10-1_i386 bug

NAME

       showq - list the Postfix mail queue

SYNOPSIS

       showq [generic Postfix daemon options]

DESCRIPTION

       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
       superuser.  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).

BUGS

       The  showq(8)  daemon  runs  at a fixed low privilege; consequently, it
       cannot extract information from queue files in the maildrop  directory.

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 (seepostconf -doutput)
              The default  location  of  the  Postfix  main.cf  and  master.cf
              configuration 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
              duplicate  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 the next service request before exiting.

       max_use (100)
              The maximal number  of  connection  requests  before  a  Postfix
              daemon process terminates.

       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 (seepostconf -doutput)
              The location of the Postfix top-level queue directory.

       syslog_facility (mail)
              The syslog facility of Postfix logging.

       syslog_name (postfix)
              The  mail  system  name that is prepended to the process name in
              syslog  records,  so  that   "smtpd"   becomes,   for   example,
              "postfix/smtpd".

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
       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

                                                                      SHOWQ(8)