Since we moved from Zimbra Mobile to MobileNG, users report that when they move or delete messages from their Mac using Apple Mail.app and IMAP, the moved / deleted messages still show on their mobile device using MobileNG ActiveSync in the same folder.
We've been investigating and found out that when a message is moved / deleted using Apple Mail.app, the EXPUNGE IMAP method is not call (unlike with ThunderBird) and the mail_item only gets a 128 flag (deleted), which MobileNG seems to ignore.

Are you aware of this behavior / bug?