DDOS Curiosity

Speaking loosely of inevitable DDOS attacks against TypeKey, I personally ran across a rather interesting variant of one today. Although I don't have 100% proof (ie. a copy of the email itself), this is what appears to have happened: naughty user creates HTML spam message. HTML spam message references a number of images on victim's server. Naughty user sends out zillions of spams. 95% of email clients render HTML email automatically, which means a good half-zillion email clients downloading those images from the victim's server. Basically, a slashdotting, only much, much worse. Quite effective.