As if you were a bit skeptical about the idea that setting up a bigtime spam reporting system might not work that well, based on the fact that so much spam comes from zombied PCs whose owners have no idea what is going on, here’s something that might change your mind.
According to MX Logic, roughly 62% of spam came from zombies during the month of June, and it has been growing fast.
Fortunately, Sophos is coming to the rescue. They are about to release a product designed to let companies know about spammer-controlled machines on their networks. My guess is there will be another product release soon, designed to report zombie machines to ISPs, then half the world will get bounced off the net.