As my buddy Francoise has pointed out, I erred (or at least gave a false impression) regarding the web-based posting. LISTSERV requires some sort of validation for any posting from the web interface, in order to prove that you are you (otherwise, on lists with public archives and public send, anyone could post through the interface claiming to be you). So there is always some sort of validation required when you post via the web interface. Paul, you could tell your users that if they use the "save your password in a cookie" option, they won't ever have to login to post, but you probably DON'T want to do this in a public cluster situation since the cookie will stay on the machine after you leave... Also note that under 1.8d if the list you are reading has non-public archives and you've already logged in to read them, a further login to post is not required unless the login cookie has timed out. Nathan