I managed to get both email and calendar using "Nine - Email & Calendar" from Play Store. I'm using gsf freeze, and also have Vanced microG installed. Installed GMS this summer, don't use googlify. Only hoping it will last..
Used the settings from first post:
-full email ([email protected], CN = Common Name from AD), not my [email protected]
- Exchange Server instead of Office 365
Did not have a choice to uncheck ActiveSync, so this is checked.
Great! Good that you managed to get everything working. Its such an irritant to use 2 phones just because of some config policies in the company.