Hybrid environments, 404 with on-premise mailboxes, 200 for Exchange online
问题 I've written an application which is able to talk to Exchange Online accounts, I'm currently trying to test to see the steps required to get it to work with on-premise accounts running in Hybrid. I have: Windows Server 2012 R2 Exchange 2016 CU8 (with /PrepareAD run) Internet accessible paths to /api/v2.0 and /autodiscover/autodiscover.json Run the HCW AD Connect is running Active Directory is synced to Azure Active Directory Permissions look good on the application that I have registered