Message view columns
Ability to add columns such as Message Size. My organisation has strict quotas so its handy to be able to delete large messages
Please make Outlook for Mac the same as Outlook for Windows. The volume of feature requests will drop significantly.
Eric Miller commented
Basically, just bring back the tools for managing columns that was available in the last version of Outlook for the Mac. Really strange that you would deprecate that...
This is particularly useful in search results as I want to see which folder an email is in