With time, a little luck and some experience you may be able to "find" the person and find out something about him. Sometimes threat of lawsuit or even just letting him know you "know about him" is enough to scare him away. In one case several years ago, I had one particularly nasty harasser that had started posting using his work e-mail. I told him I would contact his employer if he did not immediately cease and desist harassing my list members. He didn't and I called his boss. I received only one more e-mail from him: "Why did you call my boss?!" Amazing. But we didn't hear from the person again. But that was an extreme case. Most aren't worth the effort. Usually the "Default-Options= Review" methods are sufficient deterrence. cheers, wayne