MC1311978: Classic Outlook for Windows Adds User-Initiated Copilot Insights for Selected Email Text

4 minutes
MWPRO IMPACT SCORE
OPERATIONAL IMPACT
50
0 25 50 75 100
HIGH IMPACT • REVIEW RECOMMENDED
Recommended Action:
Review the update and plan any required actions before rollout.
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Primary Audience

Microsoft 365 AdminsTenant AdminsIT ManagersService Owners
Why this score?
AI Confidence
HIGH
Enough detail is available to trust this assessment.
Assessment Reasoning
Timeline for general availability was pushed from September to October, reducing immediate urgency but still requiring readiness before rollout. Admin effort involves updating support documentation, informing helpdesk, and controlling Copilot access where necessary. Users will see a noticeable change in Outlook workflows through a new Copilot feature, but this is optional and intuitive. No major compliance or technical configuration changes are required, though organisations should review AI usage policies.
55
🛡️ Admin Impact
HIGH
45
👥 User Impact
MEDIUM
50
⚡ Urgency
HIGH
40
🔧 Effort
MEDIUM
ℹ️ WHAT YOU NEED TO KNOW
📌

AT A GLANCE

Copilot in classic Outlook adds a feature for users to highlight text and request insights. This starts rolling out in early October 2026 and is on by default for eligible users.
👥

END USERS

Users can highlight email text and use Copilot to get contextual insights.
🛡️

IT ADMINS

Check Copilot settings if you want to restrict this, update support teams, and inform users about the new capability.
📅

ROLLOUT TIMELINE

Upcoming:
October 2026

📢 Official Microsoft Message Center Announcement

(Updated) Classic Outlook for Windows: User-initiated insights with Copilot
Message ID: MC1311978 (Updated)

Updated September 1, 2026: We have updated the timeline. Thank you for your patience. 

[Introduction]

We’re introducing User Initiated Insights in Copilot for classic Outlook for Windows, enabling users to manually select text within an email and prompt Copilot to provide contextual insights. This enhancement gives users greater control over when and how Copilot assists them, improving productivity, clarity, and decision-making directly within their workflow.

This message is associated with Roadmap ID 508524.

[When this will happen:]

  • Public Preview (Worldwide): We began rolling out in early May 2026 and expect to complete by late May 2026.
  • General Availability (Worldwide): We will begin rolling out in early October 2026 (previously early September) and expect to complete by end of October 2026 (previously end of September).

[How this affects your organization:]

Who is affected:

  • Users with Microsoft 365 Copilot capabilities
  • Organizations using classic Outlook for Windows

What will happen:

  • Users will be able to highlight text in emails and invoke Copilot to generate insights.

    • Screenshot: When text is highlighted in an email, an Explain This button appears to provide additional context:

    Email message with text highlighted and a button that says, 'Explain this.'

  • Functionality is built into the Outlook experience and does not require a separate add-in.
  • The feature will be on by default for eligible users.
  • Existing Microsoft 365 security, compliance, and data protection policies continue to apply.

[What you can do to prepare:]

  • If you do not want users to access this feature, remove or restrict Copilot capabilities.
  • Verify users are running the latest version of classic Outlook for Windows.
  • Inform helpdesk and support staff about this new Copilot interaction model.
  • Communicate to users how to select text and invoke Copilot for contextual insights.

Learn more:

[Compliance considerations:]

Compliance areaExplanation
Introduces AI/ML capabilities interacting with customer data.The feature enables Copilot to process user-selected email content to generate insights.
Provides a new way for users to interact with generative AI.Users can invoke Copilot directly by selecting text within emails.
Allows users to enable or disable the feature at use time.Users control invocation by choosing when to select text and engage Copilot.

Source: Microsoft Message Center • Analysed by MWPro

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