Antivirus software is a class of program that searches your hard drive and floppy disks for any known or potential viruses. The market for this kind of program has expanded because of Internet growth and the increasing use of the Internet by businesses concerned about protecting their computer assets.By removing viruses at the email server, all internal mail clients are protected AND all customers are protected from receiving viruses too.

Here are the listed of following companies who provides antivirus software.