1 1.1 tron <!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN" 2 1.1.1.8 christos "https://www.w3.org/TR/html4/loose.dtd"> 3 1.1 tron <html> <head> 4 1.1.1.6 christos <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 5 1.1.1.7 christos <link rel='stylesheet' type='text/css' href='postfix-doc.css'> 6 1.1 tron <title> Postfix manual - showq(8) </title> 7 1.1 tron </head> <body> <pre> 8 1.1 tron SHOWQ(8) SHOWQ(8) 9 1.1 tron 10 1.1.1.8 christos <b><a name="name">NAME</a></b> 11 1.1 tron showq - list the Postfix mail queue 12 1.1 tron 13 1.1.1.8 christos <b><a name="synopsis">SYNOPSIS</a></b> 14 1.1 tron <b>showq</b> [generic Postfix daemon options] 15 1.1 tron 16 1.1.1.8 christos <b><a name="description">DESCRIPTION</a></b> 17 1.1.1.4 christos The <a href="showq.8.html"><b>showq</b>(8)</a> daemon reports the Postfix mail queue status. The output 18 1.1.1.4 christos is meant to be formatted by the <a href="postqueue.1.html">postqueue(1)</a> command, as it emulates 19 1.1.1.4 christos the Sendmail `mailq' command. 20 1.1.1.3 tron 21 1.1.1.4 christos The <a href="showq.8.html"><b>showq</b>(8)</a> daemon can also be run in stand-alone mode by the supe- 22 1.1.1.4 christos ruser. This mode of operation is used to emulate the `mailq' command 23 1.1.1.3 tron while the Postfix mail system is down. 24 1.1 tron 25 1.1.1.8 christos <b><a name="security">SECURITY</a></b> 26 1.1.1.4 christos The <a href="showq.8.html"><b>showq</b>(8)</a> daemon can run in a chroot jail at fixed low privilege, 27 1.1.1.4 christos and takes no input from the client. Its service port is accessible to 28 1.1.1.4 christos local untrusted users, so the service can be susceptible to denial of 29 1.1.1.3 tron service attacks. 30 1.1 tron 31 1.1.1.8 christos <b><a name="standards">STANDARDS</a></b> 32 1.1.1.3 tron None. The <a href="showq.8.html"><b>showq</b>(8)</a> daemon does not interact with the outside world. 33 1.1 tron 34 1.1.1.8 christos <b><a name="diagnostics">DIAGNOSTICS</a></b> 35 1.1.1.5 christos Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>. 36 1.1 tron 37 1.1.1.8 christos <b><a name="configuration_parameters">CONFIGURATION PARAMETERS</a></b> 38 1.1.1.4 christos Changes to <a href="postconf.5.html"><b>main.cf</b></a> are picked up automatically as <a href="showq.8.html"><b>showq</b>(8)</a> processes 39 1.1.1.3 tron run for only a limited amount of time. Use the command "<b>postfix reload</b>" 40 1.1.1.3 tron to speed up a change. 41 1.1 tron 42 1.1.1.4 christos The text below provides only a parameter summary. See <a href="postconf.5.html"><b>postconf</b>(5)</a> for 43 1.1.1.3 tron more details including examples. 44 1.1 tron 45 1.1 tron <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b> 46 1.1.1.4 christos The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con- 47 1.1.1.3 tron figuration files. 48 1.1 tron 49 1.1 tron <b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b> 50 1.1.1.4 christos How much time a Postfix daemon process may take to handle a 51 1.1.1.3 tron request before it is terminated by a built-in watchdog timer. 52 1.1 tron 53 1.1 tron <b><a href="postconf.5.html#duplicate_filter_limit">duplicate_filter_limit</a> (1000)</b> 54 1.1.1.3 tron The maximal number of addresses remembered by the address dupli- 55 1.1.1.3 tron cate filter for <a href="aliases.5.html"><b>aliases</b>(5)</a> or <a href="virtual.5.html"><b>virtual</b>(5)</a> alias expansion, or for 56 1.1.1.3 tron <a href="showq.8.html"><b>showq</b>(8)</a> queue displays. 57 1.1 tron 58 1.1 tron <b><a href="postconf.5.html#empty_address_recipient">empty_address_recipient</a> (MAILER-DAEMON)</b> 59 1.1.1.3 tron The recipient of mail addressed to the null address. 60 1.1 tron 61 1.1 tron <b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b> 62 1.1.1.4 christos The time limit for sending or receiving information over an 63 1.1.1.3 tron internal communication channel. 64 1.1 tron 65 1.1 tron <b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b> 66 1.1.1.4 christos The maximum amount of time that an idle Postfix daemon process 67 1.1.1.3 tron waits for an incoming connection before terminating voluntarily. 68 1.1 tron 69 1.1 tron <b><a href="postconf.5.html#max_use">max_use</a> (100)</b> 70 1.1.1.3 tron The maximal number of incoming connections that a Postfix daemon 71 1.1.1.3 tron process will service before terminating voluntarily. 72 1.1 tron 73 1.1 tron <b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b> 74 1.1.1.3 tron The process ID of a Postfix command or daemon process. 75 1.1 tron 76 1.1 tron <b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b> 77 1.1.1.3 tron The process name of a Postfix command or daemon process. 78 1.1 tron 79 1.1 tron <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b> 80 1.1.1.3 tron The location of the Postfix top-level queue directory. 81 1.1 tron 82 1.1 tron <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b> 83 1.1 tron The syslog facility of Postfix logging. 84 1.1 tron 85 1.1 tron <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b> 86 1.1.1.5 christos A prefix that is prepended to the process name in syslog 87 1.1.1.5 christos records, so that, for example, "smtpd" becomes "prefix/smtpd". 88 1.1 tron 89 1.1.1.2 tron Available in Postfix version 2.9 and later: 90 1.1.1.2 tron 91 1.1.1.2 tron <b><a href="postconf.5.html#enable_long_queue_ids">enable_long_queue_ids</a> (no)</b> 92 1.1.1.3 tron Enable long, non-repeating, queue IDs (queue file names). 93 1.1.1.2 tron 94 1.1.1.5 christos Available in Postfix 3.3 and later: 95 1.1.1.5 christos 96 1.1.1.5 christos <b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b> 97 1.1.1.5 christos The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process. 98 1.1.1.5 christos 99 1.1.1.8 christos <b><a name="files">FILES</a></b> 100 1.1 tron /var/spool/postfix, queue directories 101 1.1 tron 102 1.1.1.8 christos <b><a name="see_also">SEE ALSO</a></b> 103 1.1 tron <a href="pickup.8.html">pickup(8)</a>, local mail pickup service 104 1.1 tron <a href="cleanup.8.html">cleanup(8)</a>, canonicalize and enqueue mail 105 1.1 tron <a href="qmgr.8.html">qmgr(8)</a>, queue manager 106 1.1 tron <a href="postconf.5.html">postconf(5)</a>, configuration parameters 107 1.1 tron <a href="master.8.html">master(8)</a>, process manager 108 1.1.1.5 christos <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging 109 1.1 tron syslogd(8), system logging 110 1.1 tron 111 1.1.1.8 christos <b><a name="license">LICENSE</a></b> 112 1.1.1.3 tron The Secure Mailer license must be distributed with this software. 113 1.1 tron 114 1.1 tron <b>AUTHOR(S)</b> 115 1.1 tron Wietse Venema 116 1.1 tron IBM T.J. Watson Research 117 1.1 tron P.O. Box 704 118 1.1 tron Yorktown Heights, NY 10598, USA 119 1.1 tron 120 1.1.1.4 christos Wietse Venema 121 1.1.1.4 christos Google, Inc. 122 1.1.1.4 christos 111 8th Avenue 123 1.1.1.4 christos New York, NY 10011, USA 124 1.1.1.4 christos 125 1.1 tron SHOWQ(8) 126 1.1 tron </pre> </body> </html> 127
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