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<title> Postfix manual - qshape(1) </title>
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qshape - Print Postfix queue domain and age distribution
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<b>qshape</b> [<b>-s</b>] [<b>-p</b>] [<b>-m</b> <i>min</i><b>_</b><i>subdomains</i>]
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[<b>-b</b> <i>bucket</i><b>_</b><i>count</i>] [<b>-t</b> <i>bucket</i><b>_</b><i>time</i>]
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[<b>-w</b> <i>terminal</i><b>_</b><i>width</i>]
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[<b>-c</b> <i>config</i><b>_</b><i>directory</i>] [<i>queue</i><b>_</b><i>name</i> ...]
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The <b>qshape</b> program helps the administrator understand the
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Postfix queue message distribution in time and by sender
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domain or recipient domain. The program needs read access
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to the queue directories and queue files, so it must run
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as the superuser or the <b><a href="postconf.5.html#mail_owner">mail_owner</a></b> specified in <i>main.cf</i>
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(typically <b>postfix</b>).
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<b>-s</b> Display the sender domain distribution instead of
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the recipient domain distribution. By default the
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recipient distribution is displayed. There can be
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more recipients than messages, but as each message
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has only one sender, the sender distribution is a a
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<b>-p</b> Generate aggregate statistics for parent domains.
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Top level domains are not shown, nor are domains
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with fewer than <i>min</i><b>_</b><i>subdomains</i> subdomains. The
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names of parent domains are shown with a leading
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dot, (e.g. <i>.example.com</i>).
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<b>-m</b> <i>min</i><b>_</b><i>subdomains</i>
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When used with the <b>-p</b> option, sets the minimum sub-
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domain count needed to show a separate line for a
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parent domain. The default is 5.
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<b>-b</b> <i>bucket</i><b>_</b><i>count</i>
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The age distribution is broken up into a sequence
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of geometrically increasing intervals. This option
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sets the number of intervals or "buckets". Each
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bucket has a maximum queue age that is twice as
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large as that of the previous bucket. The last
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bucket has no age limit.
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<b>-b</b> <i>bucket</i><b>_</b><i>time</i>
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The age limit in minutes for the first time bucket.
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The default value is 5, meaning that the first
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bucket counts messages between 0 and 5 minutes old.
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<b>-w</b> <i>terminal</i><b>_</b><i>width</i>
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The output is right justified, with the counts for
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the last bucket shown on the 80th column, the <i>ter-</i>
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<i>minal</i><b>_</b><i>width</i> can be adjusted for wider screens
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allowing more buckets to be displayed with truncat-
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ing the domain names on the left. When a row for a
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full domain name and its counters does not fit in
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the specified number of columns, only the last 17
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bytes of the domain name are shown with the prefix
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replaced by a '+' character. Truncated parent
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domain rows are shown as '.+' followed by the last
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16 bytes of the domain name. If this is still too
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narrow to show the domain name and all the coun-
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ters, the terminal_width limit is violated.
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<b>-c</b> <i>config</i><b>_</b><i>directory</i>
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The <b>main.cf</b> configuration file is in the named
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directory instead of the default configuration
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<i>queue</i><b>_</b><i>name</i>
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By default <b>qshape</b> displays the combined distribu-
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tion of the <a href="QSHAPE_README.html#incoming_queue">incoming</a> and <a href="QSHAPE_README.html#active_queue">active queues</a>. To display
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a different set of queues, just list their direc-
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tory names on the command line. Absolute paths are
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used as is, other paths are taken relative to the
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<i>main.cf</i> <b><a href="postconf.5.html#queue_directory">queue_directory</a></b> parameter setting. While
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<i>main.cf</i> supports the use of <i>$variable</i> expansion in
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the definition of the <b><a href="postconf.5.html#queue_directory">queue_directory</a></b> parameter,
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the <b>qshape</b> program does not. If you must use vari-
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able expansions in the <b><a href="postconf.5.html#queue_directory">queue_directory</a></b> setting, you
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must specify an explicit absolute path for each
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queue subdirectory even if you want the default
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<a href="QSHAPE_README.html#incoming_queue">incoming</a> and <a href="QSHAPE_README.html#active_queue">active queue</a> distribution.
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<a href="mailq.1.html">mailq(1)</a> List all messages in the queue.
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<a href="QSHAPE_README.html">QSHAPE_README</a> Examples and background material.
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$<a href="postconf.5.html#config_directory">config_directory</a>/main.cf, Postfix installation parameters.
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$<a href="postconf.5.html#queue_directory">queue_directory</a>/maildrop/, local submission directory.
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$<a href="postconf.5.html#queue_directory">queue_directory</a>/incoming/, new message queue.
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$<a href="postconf.5.html#queue_directory">queue_directory</a>/hold/, messages waiting for tech support.
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$<a href="postconf.5.html#queue_directory">queue_directory</a>/active/, messages scheduled for delivery.
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$<a href="postconf.5.html#queue_directory">queue_directory</a>/deferred/, messages postponed for later delivery.
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The Secure Mailer license must be distributed with this
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