CVE-2009-5121 Information

Description

Websense Email Security 7.1 before Hotfix 4 allows remote attackers to bypass the sender-based blacklist by using the 8BITMIME EHLO keyword in the SMTP session.

Reference

http://www.websense.com/support/article/t-kbarticle/Hotfix-4-for-Websense-Email-Security-v7-1