Outlook anywhere connected but not updating
This will cause Outlook 2016 to fall back to RPC over HTTP.
HKEY_CURRENT_USER\Software\Microsoft\Exchange DWORD: Mapi Http Disabled Value: 1 If you don't want to edit the registry, you can use this ready-to-use registry file: Mapi Http Disabled It's not needed when you use MAPI over HTTP as Outlook "talks" to the Exchange server over HTTPS.
This method does not work 100% of the time, but it takes only minutes to try.
I recommend deleting any Outlook 2016 profiles of the same name or renaming the profile before adding this key to the Outlook 2016 profiles.
From Tech Net's What's new for administrators in Outlook 2016 for Windows: Exchange connectivity settings are now retrieved directly from Auto Discover instead of the registry, making profiles more reliable.
As a result, Outlook 2016 administrators must configure Auto Discover. Test for Exchange connectivity issues at //testconnectivity.microsoft.com/ If you are upgrading from Outlook 2013 and your Exchange account wasn't moved to the new profile, you might be able to restore the old profile.
If the Exchange server is not properly configured, you'll need to create an containing all of your account information.
He wanted to configure his Exchange account manually, by entering the server names, but Outlook 2016 doesn't have that option for Exchange accounts: I recently upgraded to Office 2016 from Office 2013 and the Exchange account wouldn't work.
Users who were auto-upgraded to Office 2016 from Office 365 Personal, Home, or University can uninstall Office 2016 and install Office 2013 from their Office account portal.
Business subscribers should see Obtaining older versions of Office for the steps necessary to revert to Office 2013.
There are only two options: 1) or Exchange Active Sync compatible service or 2) POP or IMAP.
The Microsoft Exchange Server service option is missing.
Exchange accounts can only be added to Outlook 2016 using auto account setup (even with the new dialog, above).