Policy
Message Formats
Microsoft Office
Policy overview
Key metadata and intent for this policy.
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.
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Scope | Element | Type | Registry mapping | Constraints & behavior | Copy |
|---|---|---|---|---|---|
| User | Support the following message formats: ID L_Supportthefollowingmessageformats | enum | Path software\policies\microsoft\office\16.0\outlook\security Value name msgformats Type REG_DWORD | Options: S/MIME (1), Exchange (2), Fortezza (20), S/MIME and Exchange (3), S/MIME and Fortezza (21), Exchange and Fortezza (22), S/MIME, Exchange, and Fortezza (23) |