Anthea, The point is that you can search for these addresses or delegate the task and decline to subscribe trouble makers. It is hard work, but your list will remain orderly. Once a trouble maker gets on the list you will not get them off easily. They may stay there for ages and foment nastymail to you through their private mail to list participants. The participants often will not catch on to what is happening. I thought of this scenario when you first wrote about your nastymail but was reluctant to mention it for fear of leading you down the path to paranoia. It is very hard to be certain unless the trouble maker writes to the wrong person and they contact you. You can't just go suspecting everyone. You have a committee of fifteen people let them help screen the subscribers. -- Paul. -- Dr. Paul S. di Virgilio, University of Toronto [log in to unmask]