The OS is Windows 10 1809 that joined domain.
In the previous Outlook(office 2016), user logged in by ad account, Outlook can be autoconfiged by click next.
But, after upgrading to Outlook 2019, only email address can be auto filled, but user need to choose "Exchange" manually and input password again.
Exchange is 2016.
So, is this a wrong config in Exchange Auto discovery?