<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <link rel="STYLESHEET" href="mailman-admin.css" type='text/css' /> <link rel="first" href="mailman-admin.html" title='GNU mailman - list Administration Manual' /> <link rel='contents' href='contents.html' title="Contents" /> <link rel='last' href='about.html' title='About this document...' /> <link rel='help' href='about.html' title='About this document...' /> <link rel="next" href="node24.html" /> <link rel="prev" href="node22.html" /> <link rel="parent" href="node20.html" /> <link rel="next" href="node24.html" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name='aesop' content='information' /> <title>2.7.3 Recipient Filters</title> </head> <body> <div class="navigation"> <div id='top-navigation-panel' xml:id='top-navigation-panel'> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td class='online-navigation'><a rel="prev" title="2.7.2 sender filters" href="node22.html"><img src='previous.png' border='0' height='32' alt='Previous Page' width='32' /></a></td> <td class='online-navigation'><a rel="parent" title="2.7 the Privacy Options" href="node20.html"><img src='up.png' border='0' height='32' alt='Up one Level' width='32' /></a></td> <td class='online-navigation'><a rel="next" title="2.7.4 spam Filters" href="node24.html"><img src='next.png' border='0' height='32' alt='Next Page' width='32' /></a></td> <td align="center" width="100%">GNU Mailman - List Administration Manual</td> <td class='online-navigation'><a rel="contents" title="Table of Contents" href="contents.html"><img src='contents.png' border='0' height='32' alt='Contents' width='32' /></a></td> <td class='online-navigation'><img src='blank.png' border='0' height='32' alt='' width='32' /></td> <td class='online-navigation'><img src='blank.png' border='0' height='32' alt='' width='32' /></td> </tr></table> <div class='online-navigation'> <b class="navlabel">Previous:</b> <a class="sectref" rel="prev" href="node22.html">2.7.2 Sender filters</a> <b class="navlabel">Up:</b> <a class="sectref" rel="parent" href="node20.html">2.7 The Privacy Options</a> <b class="navlabel">Next:</b> <a class="sectref" rel="next" href="node24.html">2.7.4 Spam Filters</a> </div> <hr /></div> </div> <!--End of Navigation Panel--> <h3><a name="SECTION002273000000000000000"> 2.7.3 Recipient Filters</a> </h3> <p> The variables in this section control various filters based on the recipient of the message. <p> <dl> <dt><strong>require_explicit_destination</strong></dt> <dd>This controls whether the mailing list posting address must be explicitly named in the <span class="mailheader">To:</span> or <span class="mailheader">Cc:</span> recipient lists. The main reason why it wouldn't is if the message was blind-carbon-copied (i.e. <span class="mailheader">Bcc:</span>'d) to the list. Spammers like to do this, but sometimes legitimate messages are forwarded to the list this way. <p> If the list is not explicitly addressed and this setting is turned on, the message will be held for moderator approval. <p> </dd> <dt><strong>acceptable_aliases</strong></dt> <dd>This is the list of alternative addresses that are acceptable as a list posting address when <code>require_explicit_destination</code> is enabled. This is useful for when there aliases for the main posting address (e.g. <code>help@example.com</code> may be an alias for <code>help-list@example.com</code>). <p> </dd> <dt><strong>max_num_recipients</strong></dt> <dd>This is the maximum number of explicit recipients that are allowed on the posted message. Spammers sometimes send messages with lots of explicit recipients, so setting this number to a reasonable value may cut down on spam. </dd> </dl> <p> <div class="navigation"> <div class='online-navigation'> <p></p><hr /> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td class='online-navigation'><a rel="prev" title="2.7.2 sender filters" href="node22.html"><img src='previous.png' border='0' height='32' alt='Previous Page' width='32' /></a></td> <td class='online-navigation'><a rel="parent" title="2.7 the Privacy Options" href="node20.html"><img src='up.png' border='0' height='32' alt='Up one Level' width='32' /></a></td> <td class='online-navigation'><a rel="next" title="2.7.4 spam Filters" href="node24.html"><img src='next.png' border='0' height='32' alt='Next Page' width='32' /></a></td> <td align="center" width="100%">GNU Mailman - List Administration Manual</td> <td class='online-navigation'><a rel="contents" title="Table of Contents" href="contents.html"><img src='contents.png' border='0' height='32' alt='Contents' width='32' /></a></td> <td class='online-navigation'><img src='blank.png' border='0' height='32' alt='' width='32' /></td> <td class='online-navigation'><img src='blank.png' border='0' height='32' alt='' width='32' /></td> </tr></table> <div class='online-navigation'> <b class="navlabel">Previous:</b> <a class="sectref" rel="prev" href="node22.html">2.7.2 Sender filters</a> <b class="navlabel">Up:</b> <a class="sectref" rel="parent" href="node20.html">2.7 The Privacy Options</a> <b class="navlabel">Next:</b> <a class="sectref" rel="next" href="node24.html">2.7.4 Spam Filters</a> </div> </div> <hr /> <span class="release-info">Release 2.1, documentation updated on December 14, 2009.</span> </div> <!--End of Navigation Panel--> </body> </html>