Allow Basic Authentication prompts from network proxies
- Policy ID
- L_BasicAuthProxyBehavior
- Scope
- User Configuration
- Supported on
- At least Windows Server 2008 R2 or Windows 7
- Source
- Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
- Category
- Microsoft Office 2016 › Security Settings
Description
This policy setting controls whether network proxies are allowed to show Basic Authentication prompts.
By default, all Basic Authentication sign-in prompts are blocked, and the user is shown a message that the sign-in method isn’t allowed.
If you enable this policy setting, then network proxies will be allowed to show Basic Authentication prompts.
Warning: Allowing Basic Authentication sign-in prompts isn’t recommended because it’s a security risk.
If you disable or don’t configure this policy setting, all Basic Authentication sign-in prompts from network proxes will be blocked, and the user will be shown a message that the sign-in method isn’t allowed.
Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise, and to subscription versions of Project and Visio.
For more information, see https://go.microsoft.com/fwlink/p/?linkid=2199001.
Registry
- basicauthproxybehaviorREG_DWORD