<!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 - postlog(1) </title>
</head> <body> <pre>
POSTLOG(1) POSTLOG(1)
<b>NAME</b>
postlog - Postfix-compatible logging utility
<b>SYNOPSIS</b>
<b>postlog</b> [<b>-iv</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] [<b>-p</b> <i>priority</i>] [<b>-t</b> <i>tag</i>] [<i>text...</i>]
<b>DESCRIPTION</b>
The <a href="postlog.1.html"><b>postlog</b>(1)</a> command implements a Postfix-compatible logging inter-
face for use in, for example, shell scripts.
By default, <a href="postlog.1.html"><b>postlog</b>(1)</a> logs the <i>text</i> given on the command line as one
record. If no <i>text</i> is specified on the command line, <a href="postlog.1.html"><b>postlog</b>(1)</a> reads
from standard input and logs each input line as one record.
By default, logging is sent to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>; when the
standard error stream is connected to a terminal, logging is sent there
as well.
The following options are implemented:
<b>-c</b> <i>config</i><b>_</b><i>dir</i>
Read the <a href="postconf.5.html"><b>main.cf</b></a> configuration file in the named directory
instead of the default configuration directory.
<b>-i</b> (obsolete)
Include the process ID in the logging tag. This flag is ignored
as of Postfix 3.4, where the PID is always included.
<b>-p</b> <i>priority</i> (default: <b>info</b>)
Specifies the logging severity: <b>info</b>, <b>warn</b>, <b>error</b>, <b>fatal</b>, or
<b>panic</b>. With Postfix 3.1 and later, the program will pause for 1
second after reporting a <b>fatal</b> or <b>panic</b> condition, just like
other Postfix programs.
<b>-t</b> <i>tag</i> Specifies the logging tag, that is, the identifying name that
appears at the beginning of each logging record. A default tag
is used when none is specified.
<b>-v</b> Enable verbose logging for debugging purposes. Multiple <b>-v</b>
options make the software increasingly verbose.
<b>SECURITY</b>
The <a href="postlog.1.html"><b>postlog</b>(1)</a> command is designed to run with set-groupid privileges,
so that it can connect to the <a href="postlogd.8.html"><b>postlogd</b>(8)</a> daemon process (Postfix 3.7
and later; earlier implementations of this command must not have
set-groupid or set-userid permissions).
<b>ENVIRONMENT</b>
MAIL_CONFIG
Directory with the <a href="postconf.5.html"><b>main.cf</b></a> file.
<b>CONFIGURATION PARAMETERS</b>
The following <a href="postconf.5.html"><b>main.cf</b></a> parameters are especially relevant to this pro-
gram.
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><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#import_environment">import_environment</a> (see 'postconf -d' output)</b>
The list of environment parameters that a privileged Postfix
process will import from a non-Postfix parent process, or
name=value environment overrides.
<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 3.4 and later:
<b><a href="postconf.5.html#maillog_file">maillog_file</a> (empty)</b>
The name of an optional logfile that is written by the Postfix
<a href="postlogd.8.html"><b>postlogd</b>(8)</a> service.
<b><a href="postconf.5.html#postlog_service_name">postlog_service_name</a> (postlog)</b>
The name of the <a href="postlogd.8.html"><b>postlogd</b>(8)</a> service entry in <a href="master.5.html">master.cf</a>.
<b>SEE ALSO</b>
<a href="postconf.5.html">postconf(5)</a>, configuration parameters
<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>HISTORY</b>
The <a href="postlog.1.html"><b>postlog</b>(1)</a> command was introduced with Postfix version 3.4.
<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
POSTLOG(1)
</pre> </body> </html>