Multi-tier Email Security: The need for defense-in-depth

Overview

This white paper explains why you must take a multi-tiered approach to e-mail security--one that defends both your network's perimeter and your internal mail servers. The paper describes the unique characteristics of software-based, appliance-based, and hosted service solutions, as well as the special advantages afforded by each form factor. As message-borne threats evolve, so must your company's e-mail security strategy. Let this Symantec white paper serve as your guide in developing a comprehensive, multi-tiered defense against spam, viruses, phishing e-mails, and other inappropriate or unauthorized e-mail from external and internal sources alike.