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MS Teams with Exchange On-Premises
MS Teams is unable to connect to Exchange calendar on Premises. The calendar icon is unavailable in Teams. The mailbox is in Exchange on prem, there is a Hybrid configuration and Oauth is working. ...
AtanasM How is the on-premises Exchange Server published to the Internet? Is Windows Server 2016+ Application Proxy used, or another reverse proxy component?
In regard to the Exchange hybrid configuration, is AutoDiscover DNS used or does the Exchange hybrid configuration use a static TargetAutodiscoverEpr?
HelloAtanasM !
Tried enabling Group-Writeback?
Also make sure that OAuth is set up correct
https://docs.microsoft.com/en-us/exchange/configure-oauth-authentication-between-exchange-and-exchange-online-organizations-exchange-2013-help
KR
Oliwer Sjöberg
Hello oliwer_sundgren
I checked many times and Oauth is set up correctly.
Are you sure, that enabling Group-Writeback can solve the issue?
Thanks in advance.