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POSTQUEUE(1)		    General Commands Manual		  POSTQUEUE(1)

       postqueue - Postfix queue control

   To flush the	mail queue:

       postqueue [-v] [-c config_dir] -f

       postqueue [-v] [-c config_dir] -i queue_id

       postqueue [-v] [-c config_dir] -s site

   To list the mail queue:

       postqueue [-v] [-c config_dir] -j

       postqueue [-v] [-c config_dir] -p

       The  postqueue(1)  command  implements  the  Postfix user interface for
       queue management.  It  implements  operations  that  are	 traditionally
       available  via  the  sendmail(1)	command.  See the postsuper(1) command
       for queue operations that require super-user privileges such as	delet-
       ing a message from the queue or changing	the status of a	message.

       The following options are recognized:

       -c config_dir
	      The configuration	file is	in the named directory instead
	      of the default configuration directory. See also the MAIL_CONFIG
	      environment setting below.

       -f     Flush the	queue: attempt to deliver all queued mail.

	      This option implements the traditional "sendmail -q" command, by
	      contacting the Postfix qmgr(8) daemon.

	      Warning: flushing	undeliverable mail frequently will  result  in
	      poor delivery performance	of all other mail.

       -i queue_id
	      Schedule	immediate delivery of deferred mail with the specified
	      queue ID.

	      This option implements the traditional sendmail -qI command,  by
	      contacting the flush(8) server.

	      This feature is available	with Postfix version 2.4 and later.

       -j     Produce a	queue listing in JSON format, based on output from the
	      showq(8) daemon.	The result is a	stream of zero	or  more  JSON
	      objects,	one per	queue file.  Each object is followed by	a new-
	      line character to	support	simple streaming  parsers.  See	 "JSON
	      OBJECT FORMAT" below for details.

	      This feature is available	in Postfix 3.1 and later.

       -p     Produce a	traditional sendmail-style queue listing.  This	option
	      implements the traditional  mailq	 command,  by  contacting  the
	      Postfix showq(8) daemon.

	      Each  queue entry	shows the queue	file ID, message size, arrival
	      time, sender, and	the recipients that still need	to  be	deliv-
	      ered.  If	mail could not be delivered upon the last attempt, the
	      reason for failure is shown. The queue ID	string is followed  by
	      an optional status character:

	      *	     The  message  is in the active queue, i.e.	the message is
		     selected for delivery.

	      !	     The message is in the hold	queue, i.e. no further	deliv-
		     ery  attempt  will	 be  made  until the mail is taken off

	      #	     The message is forced to expire. See the postsuper(1) op-
		     tions -e or -f.

		     This feature is available in Postfix 3.5 and later.

       -s site
	      Schedule	immediate  delivery of all mail	that is	queued for the
	      named site. A numerical site must	be specified as	 a  valid  RFC
	      5321  address  literal  enclosed	in  [],	just like in email ad-
	      dresses.	The site must be eligible for the  "fast  flush"  ser-
	      vice.   See flush(8) for more information	about the "fast	flush"

	      This option implements the traditional "sendmail	-qRsite"  com-
	      mand, by contacting the Postfix flush(8) daemon.

       -v     Enable  verbose  logging for debugging purposes. Multiple	-v op-
	      tions make the software increasingly verbose. As of Postfix 2.3,
	      this option is available for the super-user only.

       Each  JSON  object represents one queue file; it	is emitted as a	single
       text line followed by a newline character.

       Object members have string values unless	indicated otherwise.  Programs
       should ignore object members that are not listed	here; the list of mem-
       bers is expected	to grow	over time.

	      The name of the queue where the message was  found.   Note  that
	      the  contents  of	 the  mail  queue may change while it is being
	      listed; some messages may	appear more than once, and  some  mes-
	      sages may	be missed.

	      The queue	file name. The queue_id	may be reused within a Postfix
	      instance unless "enable_long_queue_ids = true" and time is mono-
	      tonic.  Even then, the queue_id is not expected to be unique be-
	      tween different Postfix instances.  Management  tools  that  re-
	      quire a unique name should combine the queue_id with the myhost-
	      name setting of the Postfix instance.

	      The number of seconds since the start of the UNIX	epoch.

	      The number of bytes in the message header	and body. This	number
	      does  not	 include  message envelope information.	It is approxi-
	      mately equal to the number of bytes that	would  be  transmitted
	      via SMTP including the <CR><LF> line endings.

	      The  message is forced to	expire (true or	false).	 See the post-
	      super(1) options -e or -f.

	      This feature is available	in Postfix 3.5 and later.

       sender The envelope sender address.

	      An array containing zero or more objects with members:

		     One recipient address.

		     If	present, the reason for	delayed	delivery.  Delayed re-
		     cipients may have no delay	reason,	for example, while de-
		     livery is in progress, or after the  system  was  stopped
		     before it could record the	reason.

       This  program  is designed to run with set-group	ID privileges, so that
       it can connect to Postfix daemon	processes.

       RFC 7159	(JSON notation)

       Problems	are logged to syslogd(8) or postlogd(8), and to	 the  standard
       error stream.

	      Directory	 with the file.	In order to avoid exploitation
	      of set-group ID privileges, a non-standard directory is  allowed
	      only if:

	      o	     The  name is listed in the	standard file with the
		     alternate_config_directories configuration	parameter.

	      o	     The command is invoked by the super-user.

       The following parameters	are especially relevant	to  this  pro-
       gram.   The  text  below	 provides  only	a parameter summary. See post-
       conf(5) for more	details	including examples.

       alternate_config_directories (empty)
	      A	list of	non-default Postfix configuration directories that may
	      be  specified with "-c config_directory" on the command line (in
	      the case of sendmail(1), with  the  "-C"	option),  or  via  the
	      MAIL_CONFIG environment parameter.

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

       command_directory (see 'postconf	-d' output)
	      The location of all postfix administrative commands.

       fast_flush_domains ($relay_domains)
	      Optional list of destinations that are eligible for per-destina-
	      tion logfiles with mail that is queued to	those destinations.

       import_environment (see 'postconf -d' output)
	      The  list	 of  environment  parameters that a privileged Postfix
	      process will  import  from  a  non-Postfix  parent  process,  or
	      name=value environment overrides.

       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".

       trigger_timeout (10s)
	      The time limit for sending a trigger to a	 Postfix  daemon  (for
	      example, the pickup(8) or	qmgr(8)	daemon).

       Available in Postfix version 2.2	and later:

       authorized_flush_users (static:anyone)
	      List of users who	are authorized to flush	the queue.

       authorized_mailq_users (static:anyone)
	      List of users who	are authorized to view the queue.

       /var/spool/postfix, mail	queue

       qmgr(8),	queue manager
       showq(8), list mail queue
       flush(8), fast flush service
       sendmail(1), Sendmail-compatible	user interface
       postsuper(1), privileged	queue operations
       postlogd(8), Postfix logging
       syslogd(8), system logging

       Use  "postconf readme_directory"	or "postconf html_directory" to	locate
       this information.
       ETRN_README, Postfix ETRN howto

       The Secure Mailer license must be distributed with this software.

       The postqueue command was introduced with Postfix version 1.1.

       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



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