Looks like what ends up in the trash will be what was in the last auto save (~30 seconds) of the draft - it doesn’t do an additional save before discarding. When I look in my Deleted Items folder, I see the drafts from when I tested this last night and just now, but none of the discarded drafts preserved the message text, and the subject line was only preserved in one. This is probably how it slipped through the cracks: it’s not really gone, so doesn’t meet the normal ‘must prompt’ criteria. That draft is sitting in your ‘deleted items’ folder, ready to send. The good news is that ‘discard’ is not data loss. In New Outlook, it discards the message you have just finished writing - without warning or confirmation - where it disappears into the aether. In Apple’s Mail app, this is the shortcut for sending a message. One of the keyboard shortcuts changed in New Outlook compared to the “classic” Outlook app is Command–Shift–D. Microsoft has two different versions of Outlook in the Outlook for Mac app. New Outlook’s Dangerous “Discard” Shortcut

Keyboard shortcuts outlook 2016 mac