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diff --git a/doc/mailman-admin/node7.html b/doc/mailman-admin/node7.html new file mode 100644 index 00000000..8f41bc68 --- /dev/null +++ b/doc/mailman-admin/node7.html @@ -0,0 +1,147 @@ +<!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="prev" href="node6.html" /> +<link rel="parent" href="node3.html" /> +<link rel="next" href="node8.html" /> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> +<meta name='aesop' content='information' /> +<title>1.4 Basic Architectural Overview</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="1.3 a List's Web" + href="node6.html"><img src='previous.png' + border='0' height='32' alt='Previous Page' width='32' /></a></td> +<td class='online-navigation'><a rel="parent" title="1 introduction to GNU" + href="node3.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 the List Configuration" + href="node8.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="node6.html">1.3 A List's Web</a> +<b class="navlabel">Up:</b> +<a class="sectref" rel="parent" href="node3.html">1 Introduction to GNU</a> +<b class="navlabel">Next:</b> +<a class="sectref" rel="next" href="node8.html">2 The List Configuration</a> +</div> +<hr /></div> +</div> +<!--End of Navigation Panel--> + +<h2><a name="SECTION002140000000000000000"> +1.4 Basic Architectural Overview</a> +</h2> + +<p> +This section will outline the basic architecture of GNU Mailman, such +as how messages are processed by the sytem. Without going into lots +of detail, this information will help you understand how the +configuration options control Mailman's functionality. + +<p> +When mail enters the system from your mail server, it is dropped into +one of several Mailman <em>queues</em> depending on the address the +message was sent to. For example, if your system has a mailing list +named <var>mylist</var> and your domain is <var>example.com</var>, people can +post messages to your list by sending them to +<var>mylist@example.com</var>. These messages will be dropped into the +<em>incoming</em> queue, which is also colloquially called the +<em>moderate-and-munge</em> queue. The incoming queue is where most of +the approval process occurs, and it's also where the message is +prepared for sending out to the list membership. + +<p> +There are separate queues for the built-in archiver, the bounce +processor, the email command processor, as well as the outgoing email +and news queues. There's also a queue for messages generated by the +Mailman system. Each of these queues typically has one <em>queue +runner</em> (or ``qrunner'') that processes messages in the queue. The +qrunners are idle when there are no messages to process. + +<p> +Every message in the queues are represented by two files, a message +file and a metadata file. Both of these files share the same base +name, which is a combination of a unique hash and the Unix time that +the message was received. The metadata file has a suffix of +<span class="file">.db</span> and the message file has a suffix of either <span class="file">.msg</span> if +stored in plain text, or <span class="file">.pck</span> if stored in a more efficient +internal representation<a name="tex2html1" + href="#foot39"><sup>1</sup></a>. + +<p> +As a message moves through the incoming queue, it performs various +checks on the message, such as whether it matches one of the +moderation criteria, or contains disallowed MIME types. Once a +message is approved for sending to the list membership, the message is +prepared for sending by deleting, adding, or changing message headers, +adding footers, etc. Messages in the incoming queue may also be +stored for appending to digests. + +<p> +<br><hr><h4>Footnotes</h4> +<dl> +<dt><a name="foot39">... representation</a><A + HREF="node7.html#tex2html1"><sup>1</sup></a></dt> +<dd>Specifically, a Python pickle + +</dd> +</dl> +<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="1.3 a List's Web" + href="node6.html"><img src='previous.png' + border='0' height='32' alt='Previous Page' width='32' /></a></td> +<td class='online-navigation'><a rel="parent" title="1 introduction to GNU" + href="node3.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 the List Configuration" + href="node8.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="node6.html">1.3 A List's Web</a> +<b class="navlabel">Up:</b> +<a class="sectref" rel="parent" href="node3.html">1 Introduction to GNU</a> +<b class="navlabel">Next:</b> +<a class="sectref" rel="next" href="node8.html">2 The List Configuration</a> +</div> +</div> +<hr /> +<span class="release-info">Release 2.1, documentation updated on December 5, 2007.</span> +</div> +<!--End of Navigation Panel--> + +</body> +</html> |