Proofpoint Dynamic Reputation Spam, Virus Protection, Zero-Hour Anti-Virus, Email Firewall, Impostor email, greymail

Proofpoint Dynamic Reputation is the only email reputation service that uses a combination of local data and global reputation - analyzed by powerful machine learning algorithms - to block connections from malicious IP addresses. Proofpoint maintains accurate and up-to-date database of reputation for IP addresses sending e-mail across the Internet.