Hoping you'll all be able to help me somehow. I guess the first thing I should do is point you to one of my web pages to give you some idea as to why I'm asking my questions, so if you can, go to http://daniel.drew.edu/~galperin/folks.html After that, I want to ask your advice about how to deal with a potential situation in our list which we have been discussing amongst ourselves. Given that we do not wish to allow proffessionals, or the idle curious, into our list (this fact was agreed to before the list was even founded), is there a less risky way to allow proffessionals into our group without: 1. creating list subcatagories (this seemed to recieve some critism from some people in the list based on prior experiances with other lists some of us have been on) 2. to subscribe such a person to the list and have them set to NOMAIL (which they themselves can override)? I guess what I want is a subscription option for such people so that they would only be allowed to post to the list, but not recieve mail from the list. Is there any possible way to do this securely? If any of you are able to help, please CC a copy to me directly at [log in to unmask] Thanks in advance Glenn Alperin P.S. If you follow the links from that page, and are curious, please do not hesitate to ask me any questions about the material there, but if you choose to do so, please send that to me directly as this list is not the place for that type of communication.