Junk E-mail protection level

This policy setting controls your Junk E-mail protection level. The Junk E-mail Filter in Outlook helps to prevent junk e-mail messages, also known as spam, from cluttering user's Inbox. The filter evaluates each incoming message based on several factors, including the time when the message was sent and the content of the message. The filter does not single out any particular sender or message type, but instead analyzes each message based on its content and structure to discover whether or not it is probably spam.

If you enable this policy setting, you can select one of the four listed options available. After you select an option, users will not be able to change it.

If you disable this policy setting, Outlook reverts to the user-defined protection level.

If you do not configure this policy setting, users can change their junk e-mail filtering options.

Supported on: At least Windows Vista
Select level:


  1. No Protection
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\options\mail
    Value Namejunkmailprotection
    Value TypeREG_DWORD
    Value4294967295
  2. Low (Default)
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\options\mail
    Value Namejunkmailprotection
    Value TypeREG_DWORD
    Value6
  3. High
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\options\mail
    Value Namejunkmailprotection
    Value TypeREG_DWORD
    Value3
  4. Trusted Lists Only
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\options\mail
    Value Namejunkmailprotection
    Value TypeREG_DWORD
    Value2147483648


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