Description
New Outlook will support the connection of accounts in special environments, starting with GCC-High and DoD. In this release, all mailboxes connected to New Outlook will need to be hosted in the same special environment. Updates regarding rollout to additional specialized cloud environments will be provided in separate roadmap items as soon as projected timelines are available. #newoutlookforwindows
Change History
January 28, 2026 at 2:00 AM
Updated
Title
Previous
Outlook: New Outlook Support For GCC-High and Sovereign Clouds
New
Outlook: New Outlook Support For GCC-High and DoD
Description
Previous
New Outlook will support the connection of accounts in special environments such as Microsoft 365 GCC High, Microsoft 365 DoD, and Microsoft 365 operated by 21Vianet (China). In this release, all mailboxes connected to new Outlook will need to be hosted in the same special environment. #newoutlookforwindows
New
New Outlook will support the connection of accounts in special environments, starting with GCC-High and DoD. In this release, all mailboxes connected to New Outlook will need to be hosted in the same special environment. Updates regarding rollout to additional specialized cloud environments will be provided in separate roadmap items as soon as projected timelines are available. #newoutlookforwindows
Release Date
Previous
January CY2026
New
April CY2026
Modified Date
Previous
2025-06-12T23:00:59.000Z
New
2026-01-28T00:00:53.000Z
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