We have a hybrid environment, exchange 2010 sp3, with 2016 hybrid exchange server with no licences and Office365
Looking to move them back i have found a few articles below, first one is for Exchange 2013 and upwards
Second one the exchange GUID for the mailbox is the same in EMS on Exchange 2010 and Exchange Online
So I dont see where changes in above document could be relevant
Does anyone have an update walkthrough for migrating mailboxes to Exchange 2010 from Office365?