MC1162289 – M365 Change Digest

One-line summary

Copilot chat can now summarize emails and attachments in Outlook for Android and iOS, available to users with a Microsoft 365 Copilot license and pinning enabled.

Similar updates

Details

RoadmapIds

503316

Summary

Microsoft Outlook now offers email and attachment summarization via Copilot chat for Android and iOS users with a Microsoft 365 Copilot license. Rollout on Web, Mac, and Desktop is paused. The feature is enabled by default, requires no admin setup, and respects existing policies. No action is needed.

Platforms

Android, Desktop, iOS, Mac, Web

Body (from Message Center)

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:

user settings

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.

Raw JSON (for debugging)

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    "action_required_by": null,
    "ai_action_required_by": null,
    "ai_actions": [
      "Inform users",
      "Update documentation if needed"
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    "ai_master_tags": [
      "User",
      "Admin",
      "Copilot License"
    ],
    "ai_model": "gpt-4.1",
    "ai_summary": "Copilot chat can now summarize emails and attachments in Outlook for Android and iOS, available to users with a Microsoft 365 Copilot license and pinning enabled.",
    "ai_topics": [
      "Exchange",
      "Copilot",
      "Outlook"
    ],
    "category": "stayInformed",
    "details_map": {
      "Platforms": "Android, Desktop, iOS, Mac, Web",
      "RoadmapIds": "503316",
      "Summary": "Microsoft Outlook now offers email and attachment summarization via Copilot chat for Android and iOS users with a Microsoft 365 Copilot license. Rollout on Web, Mac, and Desktop is paused. The feature is enabled by default, requires no admin setup, and respects existing policies. No action is needed."
    },
    "id": "MC1162289",
    "importance": 1,
    "is_major_change": false,
    "last_modified": "2026-04-21T23:43:53Z",
    "ms_products": [
      "Exchange",
      "Copilot"
    ],
    "platforms": "Android, Desktop, iOS, Mac, Web",
    "roadmap_ids": [
      "503316"
    ],
    "services": [
      "Exchange Online",
      "Microsoft Copilot (Microsoft 365)"
    ],
    "severity": "normal",
    "tags": [
      "Updated message",
      "New feature",
      "User impact",
      "Admin impact"
    ],
    "title": "(Updated) Microsoft Outlook: Summarize email with Copilot chat"
  }
}