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<h3><a name="SECTION001628000000000000000">
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<li>Mailman will send as many <code>MAIL FROM</code>/<code>RCPT TO</code> as it needs.
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It may result in more than 10 or 100 messages sent in one connection,
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which will exceed the default value of Exim's
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<var>smtp_accept_queue_per_connection</var> value. This is bad because it
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will cause Exim to switch into queue mode and severely delay delivery of
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your list messages. The way to fix this is to set Mailman's
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<var>SMTP_MAX_SESSIONS_PER_CONNECTION</var> (in
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<span class="file"><var>$prefix</var>/Mailman/mm_cfg.py</span>) to a smaller value than Exim's
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<var>smtp_accept_queue_per_connection</var>.
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<li>Mailman should ignore Exim delay warning messages, even though Exim
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should never send this to list messages. Mailman 2.1's general bounce
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detection and VERP support should greatly improve the bounce detector's
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<li>List existence is determined by the existence of a <span class="file">config.pck</span>
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file for a list. If you delete lists by foul means, be aware of this.
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<li>If you are getting Exim or Mailman complaining about user ids when you
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send mail to a list, check that the <var>MAILMAN_USER</var> and
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<var>MAILMAN_GROUP</var> match those of Mailman itself (i.e. what were used
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in the <b class="program">configure</b> script). Also make sure you do not have
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aliases in the main alias file for the list.
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<span class="release-info">Release 2.1, documentation updated on January 11, 2009.</span>
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