Copilot Chat in Outlook in Microsoft Copilot: what does this AI read, and can you turn it off?

Checked on October 22, 2026 by verification chain vchain-1

Whether it is on by default is not yet verified; it can be turned off.

The facts, edition by edition

	All editions
What the AI does	Two vendor statements Summarize “Summarize my emails from the last week related to Project Alpine.” [1] Analyze “This lets users do things like ask questions about their inbox, prioritize and triage their emails, or prepare for upcoming meetings when using Copilot Chat in Outlook.” [3] dated copy
Model	Not yet verified
What it reads	Two vendor statements Email, Meetings, Other data “users can ask questions across supported content, such as emails, calendar items, meetings, chats, and a bounded set of files and related content.” [1] Email, Meetings, Documents “The accessible user data includes their emails, calendar, meetings, chats, and files limited to the following boundaries:” [3] dated copy
Where the data goes	Not yet verified
Trains on your data	No “Copilot Chat does not use your data to train foundation models.” [3] dated copy
On by default	Not yet verified
Can be turned off	Yes “This setting blocks Copilot in the Microsoft Copilot app, Teams, Outlook, and Copilot Chat on the web for all users.” “Blocking Copilot through Integrated Apps is a tenant-wide control that you can scope to specific users or groups, including licensed users.” [2] dated copy
Billing	Included in the license “Using Copilot Chat doesn't require a Microsoft 365 Copilot license.” [1] dated copy
Feature type	Not yet verified
Frameworks the catalog links to it	Not yet verified

What the AI does: Two vendor statements
Summarize “Summarize my emails from the last week related to Project Alpine.” [1]
Analyze “This lets users do things like ask questions about their inbox, prioritize and triage their emails, or prepare for upcoming meetings when using Copilot Chat in Outlook.” [3]
dated copy
Model: Not yet verified
What it reads: Two vendor statements
Email, Meetings, Other data “users can ask questions across supported content, such as emails, calendar items, meetings, chats, and a bounded set of files and related content.” [1]
Email, Meetings, Documents “The accessible user data includes their emails, calendar, meetings, chats, and files limited to the following boundaries:” [3]
dated copy
Where the data goes: Not yet verified
Trains on your data: No “Copilot Chat does not use your data to train foundation models.” [3] dated copy
On by default: Not yet verified
Can be turned off: Yes “This setting blocks Copilot in the Microsoft Copilot app, Teams, Outlook, and Copilot Chat on the web for all users.” “Blocking Copilot through Integrated Apps is a tenant-wide control that you can scope to specific users or groups, including licensed users.” [2] dated copy
Billing: Included in the license “Using Copilot Chat doesn't require a Microsoft 365 Copilot license.” [1] dated copy
Feature type: Not yet verified
Frameworks the catalog links to it: Not yet verified

All editions: Yes “This setting blocks Copilot in the Microsoft Copilot app, Teams, Outlook, and Copilot Chat on the web for all users.” “Blocking Copilot through Integrated Apps is a tenant-wide control that you can scope to specific users or groups, including licensed users.” [2] dated copy

Linked frameworks will appear once the reference set is published.

No change since first publication.

This fact sheet says nothing about your setup: the free readout, in French for now, reads it in your tools.