I&#39;m trying to set up logback for use with Postfix running locally on the same machine as my app.  I am using the following:<div><div><br></div><div>  &lt;appender name=&quot;EMAIL&quot; class=&quot;ch.qos.logback.classic.net.SMTPAppender&quot;&gt;</div>
<div>    &lt;SMTPHost&gt;localhost&lt;/SMTPHost&gt;</div><div>    &lt;To&gt;<a href="mailto:brian.moschel@gmail.com">brian.moschel@gmail.com</a>&lt;/To&gt;</div><div>    &lt;From&gt;<a href="mailto:brian.moschel@gmail.com">brian.moschel@gmail.com</a>&lt;/From&gt;</div>
<div>    &lt;Subject&gt;TESTING: %logger{20} - %m&lt;/Subject&gt;</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>&lt;layout class=&quot;ch.qos.logback.classic.html.HTMLLayout&quot;/&gt;</div><div>  &lt;/appender&gt;</div>
<div><br></div><div>This does not work though.  It hangs forever and my local mail logs never receive a request.  The local mail server is running at port 25.  I can run &quot;mail &lt;some email address&gt; to sucessfully mail someone on this machine.  Any ideas how to debug this?</div>
<div><br></div><div>Thanks,</div><div>Brian</div></div>