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LEARN ABOUT LINUX

showq

SHOWQ(8postfix) 														   SHOWQ(8postfix)

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).

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 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 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, "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(8postfix)

IP Networking