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

NAME
       pickup -	Postfix	local mail pickup

SYNOPSIS
       pickup [generic Postfix daemon options]

DESCRIPTION
       The  pickup(8)  daemon  waits  for hints	that new mail has been dropped
       into the	maildrop directory, and	feeds it into the  cleanup(8)  daemon.
       Ill-formatted files are deleted without notifying the originator.  This
       program expects to be run from the master(8) process manager.

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

SECURITY
       The pickup(8) daemon is moderately security  sensitive.	It  runs  with
       fixed  low  privilege  and can run in a chrooted	environment.  However,
       the program reads files from potentially	hostile	users.	The  pickup(8)
       daemon opens no files for writing, is careful about what	files it opens
       for reading, and	does not actually touch	any data that is sent  to  its
       public service endpoint.

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

BUGS
       The  pickup(8)  daemon  copies mail from	file to	the cleanup(8) daemon.
       It could	avoid message copying overhead by sending  a  file  descriptor
       instead	of  file  data,	but then the already complex cleanup(8)	daemon
       would have to deal with unfiltered user data.

CONFIGURATION PARAMETERS
       As the pickup(8)	daemon is a relatively long-running process, up	to  an
       hour  may  pass	before a main.cf change	takes effect.  Use the command
       "postfix	reload"	command	to speed up a change.

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

CONTENT	INSPECTION CONTROLS
       content_filter (empty)
	      After  the  message  is  queued,	send the entire	message	to the
	      specified	transport:destination.

       receive_override_options	(empty)
	      Enable or	disable	recipient validation, built-in content filter-
	      ing, or address mapping.

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

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

       line_length_limit (2048)
	      Upon  input,  long  lines	 are chopped up	into pieces of at most
	      this length; upon	delivery, long lines are reconstructed.

       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-
	      fix/smtpd".

SEE ALSO
       cleanup(8), message canonicalization
       sendmail(1), Sendmail-compatible	interface
       postdrop(1), mail posting agent
       postconf(5), configuration parameters
       master(5), generic daemon options
       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

								     PICKUP(8)

NAME | SYNOPSIS | DESCRIPTION | STANDARDS | SECURITY | DIAGNOSTICS | BUGS | CONFIGURATION PARAMETERS | CONTENT INSPECTION CONTROLS | MISCELLANEOUS CONTROLS | SEE ALSO | LICENSE | AUTHOR(S)

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