Vote for Kaspersky Anti-Virus for MS Exchange Server
Kaspersky Anti-Virus for MS Exchange Server scans for anti-viruses all electronic messages communicated via e-mail systems based on MS Exchange 5.5/2000/2003 servers. Anti-virus check covers both the files attached to a message (including archived and zipped files) and the body message. The messages received before anti-virus was installed and stored in mail bases can also be checked.
Features: Supports MS Exchange 2003; Quarantines suspicious and infected files; Updates anti-virus signature every three hours automatically; Uses Microsoft Management Console for management purposes; Supports cluster technology; Scans in the background mode or upon user request