I too have used gmail, and want to change aox to match gmail in some respects. Still haven't done the heavy lifting, but I can describe what I want to do about deleting:
1. I add special mailboxes, 'archived', 'trash', 'all mail' and so on, and add support for RFC6154. 2. Marking a message as deleted (in any of several ways) moves that message to the trash mailbox. 3. Messages stay in trash for a while, but are eventually deleted, without user or client action. There may be a minimum "days as trash" and certainly a maximum. Comments welcome, of course. Arnt
