Blair Williams

Enables you to optionally push users to your <a href="http://aweber.com" title="AWeber" rel="nofollow ugc">AWeber</a> email list when they signup through mingle… This plugin requires you to also be running <a href="https://wordpress.org/extend/plugins/mingle" title="Mingle" rel="ugc">Mingle</a>.
<h4>See Mingle In Action!</h4>
If you’re wondering what Mingle is — it is another WordPress plugin that easily turns your wordpress blog into a social network. You can now try Mingle out in our Mingle Community! Come be my friend at:
<a href="http://wpmingle.com" title="Mingle WordPress Community" rel="nofollow ugc">Mingle WordPress Community</a>

Mingle AWeber Signup

Enables you to optionally push users to your AWeber email list when they signup through mingle... This plugin requires you to also be running Mingle.

FolioVision

This plugin reconfigures the wp_mail() function to use SMTP instead of mail() and creates an options page that allows you to specify various options.
You can set the following options:
<ul>
<li>Specify the from name and email address for outgoing email.</li>
<li>Choose to send mail by SMTP or PHP’s mail() function.</li>
<li>Specify an SMTP host (defaults to localhost).</li>
<li>Specify an SMTP port (defaults to 25).</li>
<li>Choose SSL / TLS encryption (not the same as STARTTLS).</li>
<li>Choose to use SMTP authentication or not (defaults to not).</li>
<li>Specify an SMTP username and password.</li>
</ul>
Also adds subject to headers for SendGrid Activity Screen. SengGrid is a powerful SMTP service, however it’s Activity Log screen misses the message subjects. Our plugin adds that back in!

WP Mail SMTP SendGrid Edition

Based on WP Mail SMTP. Also adds subject for display on SendGrid Activity Screen.

Mingle AWeber Signup vs WP Mail SMTP SendGrid Edition