To defend your system from viruses, do not open suspicious e-mail attachments, enable anti-virus protection on the server side, if this service is provided by your hosting company, and be sure to have a firewall and anti-virus software installed on your personal computer. Also keep your operating system up-to-date and timely install security hot fixes and patches.
To switch on server-side anti-virus protection:
When an infected e-mail message arrives, the appropriate notice is sent to you and the message is placed into a quarantine directory on the server. Only the server administrator can view infected messages stored in the quarantine directory.
To switch off anti-virus protection: