Allow E-Mails to be marked as private or confidential prior to sending. Just like in Outlook for Windows.
Sensitivity Option is greatly missed on Outlook for Mac.
Calendar items can be marked as 'Private', so why not Tasks too?
For example, if someone's Tasks are shared with other users (their PA, project manager, etc) then they might not want them to see their personal tasks.
not possible? Sorry, this is poor