I think I finally managed to get filters set up to send 99% of those damned virus messages straight to the trash can. I just can’t convince Norton Antivirus that no, I really DON’T need to know every time it stops a copy. Just delete it silently and go on, okay? But apparently, there’s no way to do that, because Symantec wants me to KNOW that it was worth my money.
Every copy of the virus I’ve received so far has a header referencing “Maillennium” so that’s been the most reliable way to filter them out. Of course, it changed after I said that. Dammit. But on the good side, I did find the way to have NAV stop bugging me every time it stops a copy of the virus.