Prerequisites for Modern Authentication in a Hybrid Exchange 2013/2016/Office 365 environment...
Is enabling Mapi/Http on my on-premises Exchange Servers a mandatory Prerequisite?
I know it is enabled by default in office 365.
Add this to the mix... We are using Alternate Login ID (mail attribute) & want to be able to see Public Folders in a coexistence state (synced/prior to migrated to cloud)
AD Connect with no ADFS.
So is Mapi/Http needed on-premises?