With regard to autism, thanks for the explanation. I kept getting similar error messages from one of my participants who has several addresses. I thought that autism was public when I was on it. One of the reasons that I signed off was that there was too much mail. This is perhaps another pole of putting too many restrictions on your list. I don't want to be bothered deleting 100's of messages a day. So I will not sign on but I often have information which is of greater interest to autism than to my list. I obviously can't send and don't have the time to suffer the consequences of signing on. Is there some way around this other than signing on and setting my address for nomail? -- Paul. -- Dr. Paul S. di Virgilio, University of Toronto [log in to unmask]