When I create a new mailbox using exchange 2016 service; MapiOverHttp is not enabled. Outlook 2016clients cannot connect to mailbox profile when this option is not enabled, while other clients can connect using RpcOverHttp.
It might be a good to have option to enable this selection / option during mailbox plan creation.
PS: To workaround; we still can use powershell to enable MapiOverHttp for a specific mailbox.
Hi Marco, I had issue connecting Outlook 2016 on Windows 10 through external with autodiscover. Same profile i can setup Outlook 2010 no problems, but always got an error message during profile creation with Outlook 2016. (clean install on windows 10). Successfully passed autodiscover step but sign in to server failed with error “Cannot connect exchange, server must be online..”
I connected successfully after I changed the value from null to true..
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