Information:
Ability to whitelist email domains such as gmail.com instead of having to refill the banned email list every month.

Installation:

1. Download the Code
   
2. Unzip & Drag the file to inc/plugins
   
3. Go to the plugin section of the admin control panel and activate it
   
4. Go to settings and add the domains you'd want to support
   

Source:
Github::Zalvie

Requirements:
PHP 5.4.0 or higher