<<There is still a big loop hole here in ANY Case, UNLESS there is a way to control who subscribes. If I am a spammer who subscribes, I can get, in a short time, the email address of everybody on the list. I am sure i don't need to go into how this might be done. Of course, by definition (and until somebody wises up to me) anything I "post", spam. solicitation pr whatever, goes out to the entire list. The only answer i see is a filter, Using a list of known spammers. Is there some entity then that can supply such a list and keep it updated? Otherwise it's back to the delete key.>> Both of those capabilities (requiring approval of subscription requests and controlling who can look at the subscriber list) are built into the software. I am under the impression that the current configuration of hp3000-l requires owner approval of subscription requests, but that is something that I think I remember maybe hearing some time.... Steve