Horrific spam/virus - fetchmail?

I've been getting more and more each day of this latest virus, each with a bonus attachement of about 140k. So far, 48 today - this is a mess on a 56k dial-up... I have fetchmail getting my mail from five different pop accounts. Is there a way to tell fetchmail to delete anything with exe attachments from the server without downloading them? Or another commandline tool that would do that? Something I can have in a script that would run before fetchmail? Deleting them from the servers manually (there is a webinterface, or using something like kshowmail), is not really an option - too much mail coming in per day, and this would (so far, thankfully) actually take more time online while the meter's running... Thanks Hans