Ask a hundred citizens what they think of Clam AntiVirus. One citizen will be a Linux manager. The remaining ninety-nine will think you're covering the latest recipe on the Food Network.Interview: ClamAV Guru Tomasz Kojm
The Linux administrator will tell you Clam AntiVirus is the definitive open source anti-virus toolkit. She'll add that it's an easy build on any POSIX-compatible system with a C compiler, and meshes perfectly with any number of POP3, Samba and Web servers, as well as all respectable Message Transfer Agents, from sendmail to qmail to postfix.
Email Battles published an interview with the father of clamav