NetBSD/gnu/dist/postfix/html/pickup.8.html

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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 <b>pickup</b> daemon waits for hints that new mail has been
dropped into the world-writable <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 pro-
gram expects to be run from the <a href="master.8.html"><b>master</b>(8)</a> process manager.
<b>STANDARDS</b>
None. The <b>pickup</b> daemon does not interact with the outside
world.
<b>SECURITY</b>
The <b>pickup</b> daemon runs with superuser privileges so that
it 1) can open a queue file with the rights of the submit-
ting user and 2) can access the Postfix private IPC chan-
nels. On the positive side, the program can run chrooted,
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).
<b>BUGS</b>
The <b>pickup</b> 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 send-
ing 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</b> <b>PARAMETERS</b>
The following <b>main.cf</b> parameters are especially relevant
to this program. See the Postfix <b>main.cf</b> file for syntax
details and for default values. Use the <b>postfix</b> <b>reload</b>
command after a configuration change.
<b>Miscellaneous</b>
<b>always</b><i>_</i><b>bcc</b>
Address to send a copy of each message that enters
the system.
<b>mail</b><i>_</i><b>owner</b>
The process privileges used while not opening a
<b>maildrop</b> file.
<b>queue</b><i>_</i><b>directory</b>
Top-level directory of the Postfix queue.
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PICKUP(8) PICKUP(8)
<b>SEE</b> <b>ALSO</b>
<a href="cleanup.8.html">cleanup(8)</a> message canonicalization
<a href="master.8.html">master(8)</a> process manager
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
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