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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 filtering, or address mapping.

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

       ipc_timeout (3600s)
              The time limit for sending or receiving information over an internal 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.


       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".

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



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