Outlook Security Mode

This policy setting controls which set of security settings are enforced in Outlook.

If you enable this policy setting, you can choose from four options for enforcing Outlook security settings:

* Outlook Default Security - This option is the default configuration in Outlook. Users can configure security themselves, and Outlook ignores any security-related settings configured in Group Policy.

* Use Security Form from 'Outlook Security Settings' Public Folder - Outlook uses the settings from the security form published in the designated public folder.

* Use Security Form from 'Outlook 10 Security Settings' Public Folder - Outlook uses the settings from the security form published in the designated public folder.

* Use Outlook Security Group Policy - Outlook uses security settings from Group Policy.

Important - You must enable this policy setting if you want to apply the other Outlook security policy settings mentioned in this guide.

If you disable or do not configure this policy setting, Outlook users can configure security for themselves, and Outlook ignores any security-related settings that are configured in Group Policy.

Note - In previous versions of Outlook, when security settings were published in a form in Exchange Server public folders, users who needed these settings required the HKEY_CURRENT_USER\Software\Policies\Microsoft\Security\CheckAdminSettings registry key to be set on their computers for the settings to apply. In Outlook, the CheckAdminSettings registry key is no longer used to determine users' security settings. Instead, the Outlook Security Mode setting can be used to determine whether Outlook security should be controlled directly by Group Policy, by the security form from the Outlook Security Settings Public Folder, or by the settings on users' own computers.

Supported on: At least Windows Vista
Outlook Security Policy:


  1. Outlook Default Security
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Nameadminsecuritymode
    Value TypeREG_DWORD
    Value0
  2. Use Security Form from 'Outlook Security Settings' Public Folder
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Nameadminsecuritymode
    Value TypeREG_DWORD
    Value1
  3. Use Security Form from 'Outlook 10 Security Settings' Public Folder
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Nameadminsecuritymode
    Value TypeREG_DWORD
    Value2
  4. Use Outlook Security Group Policy
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Nameadminsecuritymode
    Value TypeREG_DWORD
    Value3


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