Contributed a review of Trend Micro Email Security [EOL]: Reliable and provides good spam protection and email continuity features

Contributed a review of Trend Micro InterScan Messaging Security [EOL]: An easy-to-setup and scalable solution, but is expensive

Contributed a review of Trend Micro ScanMail [EOL]: Has great analysis features, but the sandboxing feature should be improved

Contributed a review of Barracuda Email Security Gateway: An User-Friendly, Stable Email Security Gateway with a Responsive Customer Support Team.