Configure Simple MAPI name resolution prompt
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\outlook\security Options
promptsimplemapinameresolve enum - Prompt User
->
1 - Automatically Approve
->
2 - Automatically Deny
->
0
Description
This policy setting allows you to specify what occurs when a program attempts to gain access to an Address Book, using Simple MAPI. If you enable this policy setting, you can choose whether Outlook always allows access to the Address Book, always disallows access to the Address Book, or prompts the user to specify whether to allow or disallow access to the Address Book. If you disable or do not configure this policy setting, Outlook prompts the user to specify whether to allow or disallow access to the Address Book.