Message Formats

This policy setting controls which message encryption formats Outlook can use. Outlook supports three formats for encrypting and signing messages: S/MIME, Exchange, and Fortezza.

If you enable this policy setting, you can specify whether Outlook can use S/MIME (the default), Exchange, or Fortezza encryption, or any combination of any of these options. Users will not be able to change this configuration.

If you disable or do not configure this policy setting, Outlook only uses S/MIME to encrypt and sign messages. If you disable this policy setting, users will not be able to change this configuration.

Supported on: At least Windows Vista
Support the following message formats:


  1. S/MIME
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value1
  2. Exchange
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value2
  3. Fortezza
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value20
  4. S/MIME and Exchange
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value3
  5. S/MIME and Fortezza
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value21
  6. Exchange and Fortezza
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value22
  7. S/MIME, Exchange, and Fortezza
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\14.0\outlook\security
    Value Namemsgformats
    Value TypeREG_DWORD
    Value23


outlk14.admx

Administrative Templates (Users)