+ Exchange 2003/2007/2010/2013 Support

+ Multiple SCL Threshold Configuration

+ Sender Auto-Whitelisting

+ Whitelisting/Blacklisting

+ Central Email Quarantine

+ Resubmit Blocked Emails from Browser

+ Filter Performance Graph/Chart Reports

+ Forefront Protection 2010 Support

+ CSV Logging

+ Multiple Condition/Exception Rules

+ Insertion of SCL Ratings in Subject

+ Attachment Filtering

+ Foreign Spam, NDR Spam

+ Filtering of SMTP Protocol Data

How it works, top features