title: C# Console Application connecting to Exchange Online
body: <p>I have a c# console app written to manipulate a mailbox currently hosted on an Exchange 2010 server. I'm leveraging EWS to connect to the box using AutoDiscover.</p>
  
  <p>In the near future this mailbox will be moving to Exchange Online (as part of a migration to Office365). From what I've been reading, it appears the app will have to be registered in Azure AD. Is this the case, or will AutoDiscover continue to function as is?</p>