Microsoft has finally added a unified inbox feature to the Outlook for Windows roadmap. Called All Accounts view, the feature lets users see emails from multiple accounts in a single inbox without merging those accounts. Rollout begins in August 2026 under general availability, with no preview period listed.
What Is the All Accounts View in Outlook
The All Accounts view, also referred to as Unified Inbox, pulls every inbox into one combined view. Each account stays separate underneath, but the view surfaces all messages together so you can manage everything from a single place.
From this view, you can read, delete, move, archive, and mark messages across accounts without switching between mailboxes. The experience targets users who manage multiple email accounts in the new Outlook for Windows and do not want to jump between inboxes manually.
What the Initial Release Includes and What It Does Not
The first release ships with Copilot integration built in, which builds on the AI email features Microsoft has been rolling out in Outlook throughout 2025 and 2026. Immersive Search is also included, but it only works within your primary account at launch.
Cross-account search and shared mailbox support are listed as coming in later releases. If you regularly search across multiple accounts or manage shared mailboxes, those workflows will not be available right away.
The roadmap entry lists the platform as Web, which covers both the browser version and the Windows desktop app for new Outlook. The rollout targets the Worldwide Standard Multi-Tenant cloud instance under general availability.
Why This Took So Long
Unified inbox has been available on Outlook for Mac and Outlook Mobile for years. Users managing several accounts on Windows desktop have had to rely on workarounds or switch to third-party email clients just to get a combined inbox view.
Feedback threads on the Microsoft 365 community go back years. One widely upvoted Reddit post from 2025 captures the frustration clearly: users managing six or more accounts had no native option to see all their email in one place, even though the feature existed everywhere except the Windows desktop app.
Microsoft confirmed the roadmap addition on May 27, 2026. The official roadmap ID is 564609.
When and Where the Feature Rolls Out
| Detail | Info |
|---|---|
| Feature name | All Accounts view (Unified Inbox) |
| Rollout start | August 2026 |
| Platform | Web (browser and new Outlook for Windows) |
| Release phase | General Availability |
| Cloud instance | Worldwide (Standard Multi-Tenant) |
| Roadmap ID | 564609 |
The feature page is live on the Microsoft 365 roadmap.
Frequently Asked Questions
Will the All Accounts view merge my email accounts permanently?
No. The feature only creates a combined view. Each account stays fully separate underneath. You can still manage each inbox individually.
Does Outlook All Accounts view support cross-account search at launch?
No. Cross-account search is listed as a later release. At launch, Immersive Search only covers your primary account.
Does this feature work in classic Outlook for Windows?
No. The feature is confirmed for the new Outlook for Windows and the browser version only. Classic Outlook is not mentioned in the roadmap entry.
When will the unified inbox feature be available in Outlook for Windows?
Microsoft has listed August 2026 as the rollout start date under general availability.
Does the unified inbox in Outlook include Copilot support?
Yes. Copilot integration ships with the initial release and builds on the AI email features Microsoft has already added to Outlook.
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Errors and Fixes
