turtlepod

<a href="http://genbumedia.com/plugins/fx-email-log/" rel="nofollow ugc">f(x) Email Log</a> is a simple plugin to log all email sent via WordPress.
Simply visit “Tools > Email Log” Admin Page to see all your email logs. You can delete the log manually or bulk. It will log all your email including the one sent by your favorite contact form plugins.
Features:
<ol>
<li>Easy to use.</li>
<li>No ads. No bloated features.</li>
<li>Fully featured. You can delete/bulk delete logs and search logs.</li>
<li>Free, Open Source, GPL v2.0 or later license. 🙂 Use it to make something cool.</li>
<li>Support available at <a href="http://genbumedia.com/contact/?about=f%28x%29+Email+Log" rel="nofollow ugc">Genbu Media</a>. 
Notes for developer: </li>
</ol>
<h4>Github</h4>
Development of this plugin is hosted at <a href="https://github.com/turtlepod/fx-email-log" rel="nofollow ugc">GitHub</a>. Pull request and bug reports are welcome.
<h4>Other Info</h4>
This plugin is a fork of Email Log Plugin by Sudar Muthu 
Released under GNU General Public License, version 2. 
Copyright 2009 Sudar Muthu (email : sudar@sudarmuthu.com) 
http://sudarmuthu.com/wordpress/email-log

f(x) Email Log

Best of breed

Simple plugin to log all email sent via WordPress.

This plugin enhances the security and stability of your WordPress installation by delaying and controlling wp_mail() email submissions through a managed queue.
If your site exhibits unusual behavior — such as a spam bot repeatedly submitting forms — you will be alerted immediately.
<ul>
<li>Intercepts wp_mail() and places outgoing messages in a queue</li>
<li>Configure how many emails are sent and at what interval</li>
<li>Log all queued email submissions</li>
<li>Receive alerts when the queue grows unexpectedly</li>
<li>Receive alerts when WordPress is unable to send emails</li>
</ul>

Mail Queue

Take control of emails sent by WordPress. Queue outgoing emails and get notified instantly if your website is trying to send too many emails at once!

f(x) Email Log vs Mail Queue