Postby Valerion » Wed Mar 26, 2008 4:25 am
If it's still in the Scalix queues you can delete it with omqdump. If it's already in the mailboxes you may need to use omtidyallu to delete it. Be extremely careful with both these commands, they can do damage if used improperly.
If it's gone out of the server you are out of luck. Same applies to auto-forwarding, or people reading email via IMAP on their cellphones or are reading email at the time ... in general email can't be controlled easily.