I am working with a client whose on-prem has Exchange 2010 connecting to WAV15 tenant in O365 with multiple autodiscover domains. So one way to do this is to add an Exchange 2013 Hybrid on prem where the Hybrid Wizard would allow them to set the default
autodiscover domain. So the question is if there is another way to connect a Hybrid Exchange 2010 server to the cloud and still be able to set the default autodiscover domain?
shaheen