Autodiscover, Office 365 and root domain hosted on Bluehost or other cpanel hosts.
The temporary workaround for windows and Outlook was to use the registry hack bellow, but I had Mac clients in the same office Outlook 2016: Exclude the root domain from Autodiscover lookup in Outlook Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify … Read more