check before: 2025-05-15
Product:
Copilot, Defender, Microsoft 365 Apps, Microsoft 365 Copilot, Outlook, Purview Information Protection, Windows
Platform:
Android, iOS, Mac, mobile, Online, US Instances, Web, Windows Desktop, World tenant
Status:
Launched
Change type:
New feature, Updated message, User impact
Links:
Details:
Summary:
Starting mid-May 2025, Outlook users with a Microsoft 365 Copilot license can summarize PDF, Word, and PowerPoint email attachments using Copilot across web, desktop, and mobile. The feature rolls out automatically, excludes encrypted/MIP-protected files, and respects the Copilot toggle setting.
Details:
Updated September 4, 2025: We have updated the timeline. Thank you for your patience.
Soon, users will be able to summarize PDF, Microsoft Word (.docx), and Microsoft PowerPoint (.pptx) email attachments with Copilot in Outlook. The new feature will be available in Microsoft Outlook for the web, the new Microsoft Outlook for Windows desktop, Microsoft Outlook for Android/iOS, and the new Microsoft Outlook for Mac desktop.
A Microsoft 365 Copilot license is required to access this feature.
This message is associated with Microsoft 365 Roadmap ID 475249.
[When this will happen:]
General Availability (Worldwide): We will begin rolling out mid-May 2025 and expect to complete by late July 2025.
General Availability (GCC): We will begin rolling out mid-June 2025 and expect to complete by late September 2025 (previously late August).
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2025-05-14
updated:
2025-09-05
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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Pictures
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summary for non-techies**
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Direct effects for Operations**
Feature Rollout without User Preparation
Users may be unaware of the new summarization feature, leading to confusion and potential misuse, especially if they have not opted into the Copilot toggle setting.
- roles: End Users, IT Support
- references: https://support.microsoft.com/office/summarize-an-email-thread-with-copilot-in-outlook-a79873f2-396b-46dc-b852-7fe5947ab640?preview=true, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=475249
Incompatibility with Encrypted Files
The new feature does not support encrypted or MIP-protected files, which may lead to frustration for users who attempt to summarize such attachments without prior knowledge of this limitation.
- roles: End Users, Compliance Officers
- references: https://support.microsoft.com/office/summarize-an-email-thread-with-copilot-in-outlook-a79873f2-396b-46dc-b852-7fe5947ab640?preview=true, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=475249
Configutation Options**
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Data Protection**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2025-09-05 | MC MessageTagNames | New feature, User impact | Updated message, New feature, User impact |
| 2025-09-05 | MC Summary | Soon, users will be able to summarize PDF, Word, and PowerPoint email attachments with Copilot in Outlook across various platforms. This feature requires a Microsoft 365 Copilot license and will roll out from mid-May to late August 2025. Encrypted and MIP-protected files are not supported. No admin action is needed before rollout. | Starting mid-May 2025, Outlook users with a Microsoft 365 Copilot license can summarize PDF, Word, and PowerPoint email attachments using Copilot across web, desktop, and mobile. The feature rolls out automatically, excludes encrypted/MIP-protected files, and respects the Copilot toggle setting. |
| 2025-09-05 | MC Last Updated | 05/14/2025 01:51:08 | 2025-09-04T16:38:06Z |
| 2025-09-05 | MC Messages | Soon, users will be able to summarize PDF, Microsoft Word (.docx), and Microsoft PowerPoint (.pptx) email attachments with Copilot in Outlook. The new feature will be available in Microsoft Outlook for the web, the new Microsoft Outlook for Windows desktop, Microsoft Outlook for Android/iOS, and the new Microsoft Outlook for Mac desktop.
A Microsoft 365 Copilot license is required to access this feature. This message is associated with Microsoft 365 Roadmap ID 475249. [When this will happen:] General Availability (Worldwide): We will begin rolling out mid-May 2025 and expect to complete by late July 2025. General Availability (GCC): We will begin rolling out mid-June 2025 and expect to complete by late August 2025. | Updated September 4, 2025: We have updated the timeline. Thank you for your patience.
Soon, users will be able to summarize PDF, Microsoft Word (.docx), and Microsoft PowerPoint (.pptx) email attachments with Copilot in Outlook. The new feature will be available in Microsoft Outlook for the web, the new Microsoft Outlook for Windows desktop, Microsoft Outlook for Android/iOS, and the new Microsoft Outlook for Mac desktop. A Microsoft 365 Copilot license is required to access this feature. This message is associated with Microsoft 365 Roadmap ID 475249. [When this will happen:] General Availability (Worldwide): We will begin rolling out mid-May 2025 and expect to complete by late July 2025. General Availability (GCC): We will begin rolling out mid-June 2025 and expect to complete by late September 2025 (previously late August). |
| 2025-09-05 | MC Title | Microsoft Outlook: Summarize email attachments with Copilot | (Updated) Microsoft Outlook: Summarize email attachments with Copilot |
| 2025-09-05 | MC End Time | 10/31/2025 08:00:00 | 2025-11-10T08:00:00Z |
Last updated 2 days ago ago
