Disable GuessSmart in Outlook.

This policy setting determines whether GuessSmart will be used to configure an account.

If you enable this policy setting, GuessSmart will not be used to configure an account.

Supported on: At least Windows 7
Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\16.0\outlook\setup
Value Namedisableguesssmart
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

outlk16.admx

Administrative Templates (Computers)

Administrative Templates (Users)