<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <link rel="STYLESHEET" href="mailman-install.css" type='text/css' /> <link rel="first" href="mailman-install.html" title='GNU mailman - installation Manual' /> <link rel='last' href='about.html' title='About this document...' /> <link rel='help' href='about.html' title='About this document...' /> <link rel="next" href="qmail-issues.html" /> <link rel="prev" href="node16.html" /> <link rel="parent" href="mail-server.html" /> <link rel="next" href="node32.html" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name='aesop' content='information' /> <title>6.3 Using the Sendmail mail server</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="6.2.14 document History" href="node30.html"><img src='previous.png' border='0' height='32' alt='Previous Page' width='32' /></a></td> <td class='online-navigation'><a rel="parent" title="6 set up your" href="mail-server.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="6.3.1 sendmail ``smrsh'' compatibility" href="node32.html"><img src='next.png' border='0' height='32' alt='Next Page' width='32' /></a></td> <td align="center" width="100%">GNU Mailman - Installation Manual</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> <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="node30.html">6.2.14 Document History</a> <b class="navlabel">Up:</b> <a class="sectref" rel="parent" href="mail-server.html">6 Set up your</a> <b class="navlabel">Next:</b> <a class="sectref" rel="next" href="node32.html">6.3.1 Sendmail ``smrsh'' compatibility</a> </div> <hr /></div> </div> <!--End of Navigation Panel--> <h2><a name="SECTION001630000000000000000"> 6.3 Using the Sendmail mail server</a> </h2> <p> <div class="warning"><b class="label">Warning:</b> You may be tempted to set the <var>DELIVERY_MODULE</var> configuration variable in <span class="file">mm_cfg.py</span> to <code>'Sendmail'</code> when using the Sendmail mail server. <strong>Don't</strong>. The <span class="file">Sendmail.py</span> module is misnamed - it's really a command line based message handoff scheme as opposed to the SMTP scheme used in <span class="file">SMTPDirect.py</span> (the default). <span class="file">Sendmail.py</span> has known security holes and is provided as a proof-of-concept only<a name="tex2html4" href="#foot407"><sup>4</sup></a>. If you are having problems using <span class="file">SMTPDirect.py</span> fix those instead of using <span class="file">Sendmail.py</span>, or you may open your system up to security exploits. </div> <p> <br><hr><h4>Footnotes</h4> <dl> <dt><a name="foot407">... only</a><A HREF="node31.html#tex2html4"><sup>4</sup></a></dt> <dd>In fact, in later versions of Mailman, this module is explicitly sabotaged. You have to know what you're doing in order to re-enable it. </dd> </dl> <p><br /></p><hr class='online-navigation' /> <div class='online-navigation'> <!--Table of Child-Links--> <a name="CHILD_LINKS"><strong>Subsections</strong></a> <ul class="ChildLinks"> <li><a href="node32.html">6.3.1 Sendmail ``smrsh'' compatibility</a> <li><a href="node33.html">6.3.2 Integrating Sendmail and Mailman</a> <li><a href="node34.html">6.3.3 Performance notes</a> </ul> <!--End of Table of Child-Links--> </div> <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="6.2.14 document History" href="node30.html"><img src='previous.png' border='0' height='32' alt='Previous Page' width='32' /></a></td> <td class='online-navigation'><a rel="parent" title="6 set up your" href="mail-server.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="6.3.1 sendmail ``smrsh'' compatibility" href="node32.html"><img src='next.png' border='0' height='32' alt='Next Page' width='32' /></a></td> <td align="center" width="100%">GNU Mailman - Installation Manual</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> <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="node30.html">6.2.14 Document History</a> <b class="navlabel">Up:</b> <a class="sectref" rel="parent" href="mail-server.html">6 Set up your</a> <b class="navlabel">Next:</b> <a class="sectref" rel="next" href="node32.html">6.3.1 Sendmail ``smrsh'' compatibility</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>