Use Cases and Deployment Scope
I use Proofpoint Email Protection, I had the several problems of SPAM, Phishing, Malware and same thing like that. Proofpoint Email Protection resolved more than 90% of issues with e-mails. The process the deployment was good, however was necessary make several tests to work perfectly due the Proofpoint Email Protection have several options to e-mail filter.
Alternatives Considered
Sophos Email and Sophos Central Device Encryption
Other Software Used
Sophos Intercept X, SonicWall TZ, Bitdefender GravityZone, WatchGuard AuthPoint, Watchguard Endpoint Security