Another thing you can do is put all known email addresses for the trouble-maker on the Filter=Also,... line. What I did in a similar case is did a search on several search engines for the person's name to uncover as many email addresses as I could find. Dejanews is a good source. Unfortunately, there are as many free email services as stars in the sky, so he can keep coming up with new addresses, but if you are persistent in adding each new address to the Filter, he will eventually give up. Francoise