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<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"
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<link rel='stylesheet' type='text/css' href='postfix-doc.css'>
<title> Postfix manual - pickup(8) </title>
</head> <body> <pre>
PICKUP(8)                                                            PICKUP(8)

<b>NAME</b>
       pickup - Postfix local mail pickup

<b>SYNOPSIS</b>
       <b>pickup</b> [generic Postfix daemon options]

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

<b>STANDARDS</b>
       None. The <a href="pickup.8.html"><b>pickup</b>(8)</a> daemon does not interact with the outside world.

<b>SECURITY</b>
       The <a href="pickup.8.html"><b>pickup</b>(8)</a> 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  <a href="pickup.8.html"><b>pickup</b>(8)</a>
       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.

<b>DIAGNOSTICS</b>
       Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>.

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

<b>CONFIGURATION PARAMETERS</b>
       As the <a href="pickup.8.html"><b>pickup</b>(8)</a> daemon is a relatively long-running process, up to  an
       hour  may  pass  before a <a href="postconf.5.html"><b>main.cf</b></a> change takes effect.  Use the command
       "<b>postfix reload</b>" command to speed up a change.

       The text below provides only a parameter summary. See  <a href="postconf.5.html"><b>postconf</b>(5)</a>  for
       more details including examples.

<b>CONTENT INSPECTION CONTROLS</b>
       <b><a href="postconf.5.html#content_filter">content_filter</a> (empty)</b>
              After  the  message  is  queued,  send the entire message to the
              specified <i>transport:destination</i>.

       <b><a href="postconf.5.html#receive_override_options">receive_override_options</a> (empty)</b>
              Enable or disable recipient validation, built-in content filter-
              ing, or address mapping.

<b>MISCELLANEOUS CONTROLS</b>
       <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
              The  default  location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
              figuration files.

       <b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b>
              The time limit for sending  or  receiving  information  over  an
              internal communication channel.

       <b><a href="postconf.5.html#line_length_limit">line_length_limit</a> (2048)</b>
              Upon  input,  long  lines  are chopped up into pieces of at most
              this length; upon delivery, long lines are reconstructed.

       <b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b>
              The maximum amount of time that an idle Postfix  daemon  process
              waits for an incoming connection before terminating voluntarily.

       <b><a href="postconf.5.html#max_use">max_use</a> (100)</b>
              The maximal number of incoming connections that a Postfix daemon
              process will service before terminating voluntarily.

       <b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b>
              The process ID of a Postfix command or daemon process.

       <b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b>
              The process name of a Postfix command or daemon process.

       <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b>
              The location of the Postfix top-level queue directory.

       <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
              The syslog facility of Postfix logging.

       <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b>
              A  prefix  that  is  prepended  to  the  process  name in syslog
              records, so that, for example, "smtpd" becomes "prefix/smtpd".

       Available in Postfix 3.3 and later:

       <b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b>
              The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process.

       Available in Postfix 3.5 and later:

       <b><a href="postconf.5.html#info_log_address_format">info_log_address_format</a> (external)</b>
              The email address form that will be used  in  non-debug  logging
              (info, warning, etc.).

<b>SEE ALSO</b>
       <a href="cleanup.8.html">cleanup(8)</a>, message canonicalization
       <a href="sendmail.1.html">sendmail(1)</a>, Sendmail-compatible interface
       <a href="postdrop.1.html">postdrop(1)</a>, mail posting agent
       <a href="postconf.5.html">postconf(5)</a>, configuration parameters
       <a href="master.5.html">master(5)</a>, generic daemon options
       <a href="master.8.html">master(8)</a>, process manager
       <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging
       syslogd(8), system logging

<b>LICENSE</b>
       The Secure Mailer license must be distributed with this software.

<b>AUTHOR(S)</b>
       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

                                                                     PICKUP(8)
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