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<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html> <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<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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