Outlook mobile meets needs of customers with the highest Federal security & compliance requirements

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AQ

Q:       What changes were made to the architecture for Outlook mobile that makes it compliant for GCC High and DoD customers?

A:       To meet the high level of government security and compliance requirements, we updated the Outlook mobile architecture so that it establishes a direct connection between the Outlook mobile app and the compliant Exchange Online backend services using a https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/outlook-for-ios-and-android/outlook-for-ios-and-android and removes middle tier services.

Same for Exchange on premises?