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<html>
<body>
<h2><a href="mailfront.html">mailfront</a></h2>
<h1>Plugin: cvm-authenticate</h1>
<hr />
<p>This plugin uses a <a
href="http://untroubled.org/cvm/cvm.html">CVM</a> to validate recipient
addresses.</p>
<h2>Configuration</h2>
<p>This module is configured by
the <a href="http://untroubled.org/cvm/sasl.html">CVM SASL</a>
library.</p>
<p>Additionally, it recognizes the following environment variable:</p>
<dl>
<dt><tt>$AUTH_REQUIRES_TLS</tt></dt>
<dd>Only offer authentication when the client is using an encrypted
connection, to avoid sending a password over an insecure connection.
This checks that TLS has been negotiated by
the <a href="plugin-starttls-ucspi.html">starttls-ucspi plugin</a>.</dd>
</dl>
<h2>Commands</h2>
<dl>
<dt><tt>AUTH</tt></dt> <dd>Implements the SMTP service extension for
authentication, as specified by RFC 2554.</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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