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<html>
<body>
<h2><a href="mailfront.html">mailfront</a></h2>
<h1>Plugin: starttls-ucspi</h1>
<hr />
<p>This plugin uses
<a href="http://www.suspectclass.com/sgifford/ucspi-tls/">ucspi-tls</a>
to implement the <tt>STARTTLS</tt> SMTP command, which is used to begin
TLS encryption on a plaintext SMTP connection.</p>
<h2>Configuration</h2>
<p>This module is configured by the following environment variable:
<dl>
<dt><tt>UCSPITLS</tt></dt>
<dd>Instructs mailfront to offer the <tt>STARTTLS</tt> command.
This variable is removed from the environment after TLS has been
negotiated.</dd>
</dl>
</p>
<h2>Commands</h2>
<dl>
<dt><tt>STARTTLS</tt></dt> <dd>Implements the SMTP service extension for
secure smtp over transport layer security, as specified by RFC 3207.</dd>
</dl>
<h2>Sender Action</h2>
<p>None</p>
<h2>Recipient Action</h2>
<p>None</p>
<h2>Data Action</h2>
<p>None</p>
<h2>Message Action</h2>
<p>None</p>
</body>
</html>
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