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MC1162289 Stay informedUpdated messageNew featureUser impactAdmin impact

Microsoft Outlook: Summarize email with Copilot chat

Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.
Exchange Online
Microsoft 365 admin center

Rollout

Roadmap
503316

Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".

Schedule dates changed in the text

Date phrases in schedule sentences differ between the versions this installation saw
  • Seen 21 Apr 2026 early November 2025, late November 2025

Read from date phrases in Microsoft's text, not from notice metadata. A changed phrase can be a moved rollout, a new milestone or just rewording; "What changed" below shows which.

What the notice says

Microsoft’s text, with source markup removed
Updated April 21, 2026: We have paused rollout of Web, Mac, and Desktop releases. Android and iOS will continue to rollout as planned. Introduction We're introducing a new way to quickly summarize emails and attachments using Copilot chat in Outlook. With a single click, users can generate concise summaries of email content and attachments, helping them stay focused and save time. This feature is available to Android and iOS users with a Microsoft 365 Copilot license and pinning enabled. This message is associated with Microsoft 365 Roadmap ID 503316. When this will happen: Targeted Release (Worldwide): Rollout started early October 2025; completed mid-October 2025. General Availability (Worldwide): Began mid-October 2025; completed mid-October 2025. How this affects your organization: Who is affected: Users with a Microsoft 365 Copilot license and pinning enabled in Outlook across Android and iOS. What will happen: Users will see a new option to summarize email content using Copilot chat: The feature will be available across Android, Desktop, iOS, Mac, Web, and both Classic and New Outlook for Windows. No admin configuration is required; the feature is enabled by default for eligible users. Existing policies are respected; no changes to admin controls are needed. What you can do to prepare: No action is required. You may choose to inform users about the new summarization capability. If desired, update internal documentation to reflect the availability of this feature. Compliance considerations: No compliance considerations identified, review as appropriate for your organization.

What changed

Between archive captures, newest first

  1. Updated October 2, 2025:April 21, 2026: We have updated the content. Thank you for your patience.paused rollout of Web, Mac, and Desktop releases. Android and iOS will continue to rollout as planned. Introduction We're introducing a new way to quickly summarize emails and attachments … content and attachments, helping them stay focused and save time. This feature supports both Classic and New Outlook for Windows is available to Android and is available to iOS users with a Microsoft 365 Copilot license and pinning enabled. This message … 365 Roadmap ID 503316. When this will happen: Targeted Release (Worldwide): Rollout underway by started early October 2025; expected completion by early November completed mid-October 2025. General Availability (Worldwide): BeginsBegan mid-October 2025; expected completion by late November completed mid-October 2025. How this affects your organization: Who is affected: Users with a Microsoft 365 Copilot license and pinning enabled in Outlook across Android, Desktop, iOS, Mac, Web, Android and Windows (Classic and New).iOS. What will happen: Users will see a new option to summarize email …

    • Tags New feature, User impact, Admin impact → Updated message, New feature, User impact, Admin impact

    Updated October 2, 2025: We have updated the content. Thank you for your patience. Introduction We're introducing a new way to quickly summarize emails and attachments using Copilot chat in Outlook. With a single click, users can generate concise summaries of email content,content and attachments, helping them stay focused and save time. This feature supports both Classic …

  3. · first version seen

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