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RM561552Microsoft Purview: Data Loss Prevention to restrict processing external emails in Microsoft 365 Copilot and Copilot Chat

Summary

We are expanding Microsoft Purview DLP for Microsoft 365 Copilot and Copilot Chat to safeguard risks from external emails. This real-time control helps organizations mitigate data risks by preventing Microsoft 365 Copilot and Chat from processing emails from senders external to your organization. This capability currently extends to Microsoft 365 Copilot and agents built in Copilot Studio that are published to Microsoft 365 Copilot.

Description

We are expanding Microsoft Purview DLP for Microsoft 365 Copilot and Copilot Chat to safeguard risks from external emails. This real-time control helps organizations mitigate data risks by preventing Microsoft 365 Copilot and Chat from processing emails from senders external to your organization. This capability currently extends to Microsoft 365 Copilot and agents built in Copilot Studio that are published to Microsoft 365 Copilot.

GA date: January CY2027

Preview date: June CY2026

Version history

2 versions tracked

Updated 1 time since May 12, 2026. Microsoft 365 Message Center only shows the current version; this archive preserves tracked history.

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  1. Jun 24, 2026 - 11:15 PMLatest - v2

    Changed: Body

  2. May 12, 2026 - 11:00 PMOriginal - v1

    Changed: Initial version

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