Exchange 2000

You can do this by writing an event sink, which translates into programming. But my advise, for what it's worth, is to forget about depending on simply blocking attachments for virus protection. Invest in a decent anti-virus scanner that will not only block attachments but also clean legitimate files that are infected. We use Symantec's Norton AntiVirus for Exchange for this. IMO it's a decent product for not much money. There are a lot of other products and methods of implementation out there as well but bottom line, get some real AV protection and keep it up-to-date.

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