I remember reading something somewhere about possibility of problems signing off of a discussion list (among other things) when a site starts using Internet addressing, when users there had signed up in the past when the site still used BITNET addressing. What I remember was that there was a nice, correct solution for this problem. Could someone either point me at the relevant documentation or tell me how to solve this? Or point me at the relevant discussion list? And what the other problematic situations (if any) are? As Node Admin I believe I should (already) know this, so if I'm "flamed", I can only answer with "Sorry, but there's *so* much to remember..." (which of course is no excuse :-) ). Thanks in advance & regards. Scott/