LISTSERV also catches signoff requests sent to the list. The problem is that users are getting increasingly creative at making up syntaxes that don't exist and are thus not caught. Another problem is the incredible amount of new users with signature files of 15-20 lines. LISTSERV only looks for commands in short messages, on the assumption that people are unlikely to send 20 subscription requests in a single file. It's all a tradeoff between catching the bad commands, and preventing legitimate messages from being posted. I have increased the "small message" threshold for the next version, and also added a couple of the most popular subscribe commands that don't actually exist :-) Eric