Short Version
The new Outlook for Windows is getting an All Accounts view, also known as a unified inbox. If you have more than one account connected, you can see all of their email together in a single inbox view and deal with it from one place. Your accounts and mailboxes stay separate; this is a combined view, not a merge. Due late September to late November 2026.
Details
If you have more than one account connected in the new Outlook for Windows, the All Accounts view brings the email from every one of them together in a single inbox view (1). Each account keeps its own inbox underneath, so nothing is merged or moved between accounts (2). All Accounts view simply shows the messages side by side so you can triage (sort through and deal with) your mail from one place.
- Work across accounts without switching: you can read, delete, search, move, archive and mark messages from the All Accounts view without jumping between mailboxes.
- Works with Copilot: the view integrates with Copilot for AI-assisted email tasks. Search with Copilot is supported for finding messages across your primary account.
- On by default: All Accounts view is switched on for eligible users. You can change the setting yourself unless your organisation has locked it through an admin policy.
Availability
Due late September to late November 2026.
Source, related links and references
Roadmap ID 564609.
Related: Customise the classic ribbon in new Outlook.
See what else is new for Outlook and Copilot.
For Admins
No admin action required. All Accounts view is on by default for eligible users and users can change the setting themselves. Microsoft says organisations can enforce a configuration through an admin policy; see the message for the policy details. The rollout started in late September 2026 and is now due to complete by late November 2026 (previously late October). MC1519843.
Page originally published
8th November 2026.
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