Ok, after a little bit more of investigation: * The bug is mainly in "extraddr".
* Modifying the "subscribe" script fixes the problem when confirmation cookies are disabled. That would be of course a crazy thing to do nowadays, but I will modify the "subscribe" script as well for completeness. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

