Manage domain rules

Determine how the Outlook client should interact with certain domains. If a domain is not specified, the default behavior will be adopted. You can use this feature to force the use of Secure Exchanges, or to disable by default the use of Secure Exchanges for certain domains or sending types. Please specify a valid email domain. For example for emails to support@secure-exchanges.com, the domain would be secure-exchanges.com.

Domain
Rule
Apply to emails