MAPI security confirmation popup automated dismissal

13-08-2023 - 0 minutes, 15 seconds -

Support: Windows 7+

Registry path: HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Security\PromptSimpleMapiSend

Available values:

  • 0: Automatically deny
  • 1: Prompt user (Default)
  • 2: Automatically approve


If set to 2 (Automatically approve) it will allow any program to send emails through MAPI without any user interaction. I wouldn't suggest to apply this value unless strictly necessary.