Maybe just detect locking is not possible and don't try it. Or maybe detect you need a different kind of locking.
Or say locking is not possible, using readonly mode. But even with -R we get the same delay and message! Anyway, the point is make there a way for users to read a mailbox with no questions and no delay. Maybe you need an option: --dont-bother-with-locks. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]