I would suggest implementing Barracuda Spam, because this solution has a multi-factor threat analysis engine, which other products don't have.
Barracuda Email Security Gateway combats spam, malware, and phishing, blocking 99% of threats with advanced features like AI-based defense and cloud sandboxing. Its scalability suits diverse needs, enhancing productivity with email spooling. However, it lacks global 24/7 support, has aggressive spam filtering causing false positives, and struggles with API integration and archival vendor compatibility. Issues with phishing detection and spam updates remain significant challenges for users.
