FWIW, I've been working with a friend and fellow List Admin on trying to figure out why she could not post mail to her own lists, but can receive without difficulty. She finally discovered via her ISP that their AV filters (Spam-Cop) have taken to rejecting legitimate posts at least from certain IP addresses and/or domains. So, if you are having a similar problem, you might want to check this in your own area before spending time trouble-shooting. David E. Cann decann@infionline.net