The Symantec Mail Security 8160 Appliance: A Technical White Paper on Antispam Defenses at the TCP/IP

Overview

Unsolicited bulk email (spam) is now a major concern of IT managers. Having defended users' PCs against email-borne viruses, managers now have to protect user mailboxes from being swamped under a barrage of, at best unwanted, and often offensive (pornographic) or fraudulent (phishing), email messages. The Symantec Mail Security 8160 appliance implements a comprehensive set of antispam defenses at the TCP/IP level. Their objective is to significantly reduce the transfer capacity available to spammers, while continuing to maintain it for legitimate sources of email.