I've newly implemented IMAP mail folders on our Slackware64 14.1 server. I'm used to the 'ole mbox format and am new to IMAP. With mbox, if I wanted to add one or more message to a mbox I could simply cat >> the messages to the mbox file and voila!, there were in there. It does not appear to quite work this way with IMAP what with indexes and all.
How would a add a message (for example, an accidental deletion) to an IMAP folder?