Release 4.1a is a complete rebuild of MailXServer on the Red Had Enterprise Linux 4 (RHEL4) platform

Added support for gray listing

Edit Static Server Blacklist & Whitelist

Custom rules can be created as a very powerful way to stop specific spam

All scores assigned to spam rules can be modified

Added support for Bayes spam filtering

Added support for SURBL scanning

Added support to add HTML disclaimers to an email message