Network Security White Papers
SMTP Analysis, Heuristic Analysis and Multi-Tier Anti-Spam in an Email Security Gateway
Overview As spam attacks become more frequent and increasingly more sophisticated and varied, a new spam identification and filtering technique that is highly adaptable to the specific nature of the organizations can be found based on the Bayesian probability theory. Also, many spam behaviors require multi-tier anti-spam functions working together in analyzing the SMTP, email contents, and in conducting the scan from Real-time Spam Black Lists (RBL) to block malicious email. This paper describes the SMTP analysis, the heuristics analysis, and the multi-tier anti-spam techniques that an email security gateway could deploy effectively in blocking spam and virus.
| Publisher | O2Micro | File Format | |
|---|---|---|---|
| Date Published | April 2007 | ||
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 4 out of 10 users found this white paper useful
White Paper RSS
Download
Register
