Exchange Online Free/Busy Issues with OAuth Authentication

Update: 10 Dec 2014: It is reported that this issue is fixed in CU7 for Exchange Server 2013 OAuth authentication is a new server to server authentication model available in Exchange 2013 SP1 and later and Exchange Online (Office 365). With OAuth enabled and Exchange hybrid in place and where you have multiple endpoints of… Continue reading Exchange Online Free/Busy Issues with OAuth Authentication

Exchange Web Services (EWS) and 501 Error

As is common with a lot that I write in this blog, it is based on noting down the answers to stuff I could not find online. For this issue, I did find something online by Michael Van “Hybrid”, but finding it was the challenge. So rather than detailing the issue and the reason (you… Continue reading Exchange Web Services (EWS) and 501 Error