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.

iclanzan

Serghei Iakovlev

This plugin configures WordPress to use a SMTP server when sending emails instead of the default PHP <code>mail()</code> function.
It also creates a settings page where you can enter the SMTP server details and authenticatin credentials if needed.

SMTP

Allows you to configure and use a SMTP server (such as Gmail) for sending emails.

Mingle AWeber Signup vs SMTP