The first editor, if you don't use the "Moderator=" keyword, must be a plain e-mail address. The problem is that when LISTSERV evaluates a complex enumerable expression, there is no guarantee about what order the addresses will be returned in. Currently I think it's only an issue for list references but in the past it was common for LISTSERV to simply sort the results to eliminate duplicates. So the "Editor=" keyword is special and the first item must be a plain address, again unless you use "Moderator=". Eric