How to restore a deleted mail

[Adam Tauno Williams]

> how do I restore a deleted message in an mailbox?
> A scenarioa as followed:
> A user deleted a mail and emptied the trash. Cyrus is configued to expunge 
> delayed. 
> I think the messages is deleted in unser's opinion. Can the admin restore such 
> a deleted message?

Restore the file [message] to the appropriate directory and reconstruct
the corresponding mailbox.