I envision a software product that would automatically send a virus back to the spammer. You load it onto your email and any incoming email is filtered against a database of known spammers, if it concludes that the item is spam then it launches an auto attack on the ip address and any server it originated from. Bombing the server and authors computer with viruses and Trojans, or just locking them up with incoming mail. LOL After a while server owners will get tired of that and stop allowing spam to originate from their servers.
Of course in practice this probably wouldn’t work. But its a nice fantasy, especially if you’re perturbed when you delete 30 pieces of email from your inbox that is useless. 😀
