After this message, I will remove the subscriber's only requirement to the list. A few remarks (and important to those who could not post to the list anymore) 1) If you know that you will be posting from a different address, you can subscribe that address to the list as well without receiving duplicate messages. All you need to do is to subscribe to the `allow' list. For the devel list: echo| mail [EMAIL PROTECTED] For the users list: echo| mail [EMAIL PROTECTED] You can unsub similarly. 2) I could not block these viral messages based on subject: there were (eventually) 12 different subjects. 3) I will not authenticate based on From: or any other fields. It is insecure, and much easier to forge than envelope sender. Just consider the fact that over 20 of these messages had list subscribers in the From: line---while only 3 had subscribers as envelope sender. Mate