On 19 September 2001 CNS implemented the Norton AntiVirus for Gateways software on inbound and outbound email servers they maintain. The software detects and removes infected email attachments from messages passing through the CNS email servers. This applies to inbound mail addressed to "anyone"@yorku.ca and outbound mail sent via mailrelay.yorku.ca The latest information from the vendor's (Symantec Corp.) virus database will automatically be used to ensure that viruses are detected as soon as they become known. The AntiVirus software will replace any infected attachment with text that explains why the attachment was removed. The rest of the (uninfected) message will be delivered unchanged. The sender of an infected email message receives a notification indicating that they were attempting to send a virus and that the attachment has been removed. The Norton AntiVirus for Gateways software is an important additional measure for preventing the spread of email borne computer viruses. It is not a replacement for desktop anti-virus software. To safeguard your computer, you should always run up-to-date desktop anti-virus software. For more information, contact CNS Client Support Services at extension 55800 or send email to [log in to unmask]