Missing root certificates

This policy setting controls how Outlook functions when a root certificate is missing.

If you enable this policy setting, you can choose from three options that determine how Outlook functions when a CRL is missing.

- Neither Error nor Warning. This option displays neither an error nor a warning, and enforces the default configuration in Outlook.
- Warning. This option ensures that Outlook displays a warning message when a CRL is missing.
- Error. This option ensures that Outlook displays an error message when a CRL is missing.

If you don't configure this policy setting, users will see an error when a root certificate is missing.

Supported on: At least Windows Vista
Indicate a missing root certificate as a(n):


  1. Neither error nor warning
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namesigstatusnotrustdecision
    Value TypeREG_DWORD
    Value0
  2. Warning
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namesigstatusnotrustdecision
    Value TypeREG_DWORD
    Value1
  3. Error
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namesigstatusnotrustdecision
    Value TypeREG_DWORD
    Value2


outlk14.admx

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