Your not alone mate. I've received hundreds over the last few days. I've also found mention of the problem on dozens of vBulletin forums across the Net. Real pain in the ass, but I'm satisfied that the problem has originated at the user end. My PCs are all clean and religously checked and the messages do not route through my ISP. Real, real nuisance though all the same. I'm loath to switch of email facilities on the site - what are other people thoughts on the best way to handle this?