Kaspersky Anti-Spam detects spam in incoming mail transmitted by SMTP and filters it out before mail is forwarded to the recipient.
Kaspersky Anti-Spam is compatible with all commonly used mail systems, making it easy to integrate the solution into existing network configurations regardless of operating system. The solution is flexible enough to be used either as a separate filter or a full-scale enterprise mail server supporting Sendmail, qmail, CommuniGate Pro, Postfix or Exim.