Solutions for Anti Virus & Anti Spam
The Linux operating system is a secure environment, relatively unaffected by computer viruses. The DOS® and Windows® environment, however, is different. A Linux server might still harbor Windows system viruses and, while not itself affected, can pass them on to numerous Windows-based clients. Rather than trying to block viruses at each Windows-based computer connected to a UNIX system, samba-uvscan an efficient centralized solution. In order to protect yourself and your users, it is more important than ever to maintain anti-virus security.
SpamAssassinTM is a open source mail filter using a wide range of heuristic tests on mail headers and body text for site-wide to identfy spam, or unsolicited commercial emails.
Samba-vscan : On-access Virus Protection with McAfee Scanning Engine
SpamAssassin Mail Filter : Universal Rule-Based Unsolicited Commercial Email Identification System