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Outlook 365 keeps asking for password with Exchange 2019
Hi guys, I would like to ask if you didn't face the similar problem last few weeks when using Outlook 365 connecting to on-premise Exchange 2019. Office 365 does not have exchange online setup and ...
Outlook will try to connect to Exchange Online "as priority", even if you are not actually using the service, which is most likely what's causing the issue for you. Use the reg keys in this article to disable this "helpful" feature: https://support.microsoft.com/en-us/help/3211279/outlook-2016-implementation-of-autodiscover