Sean Lee writes: > Sorry about an off-the-topic-remark, but I think a-v software does work > more often than it doesn't. > Besides, how do you expect, say, an insurance company to ban Excel or Word > attachments? > It's more expensive/inconvenient to implement a no-attachment policy and > create a productive work-around.
Simple: make a policy enforcing everyone to use compression for executable attachments: simply make the server refuse any messages with unwanted attachments, don't attempt to clean them; it does not work. They're in email because they're sent by a virus. Take a look at http://www.untroubled.org/qmail-qfilter/, and http://www.fefe.de/antivirus/42.zip (Attach this one, and feed it to your antivirus, it will definitely either kill your antivirus software or bring your server down. Make your own conclusion about antivirus software.)
