Microsoft Purview: Data Loss Prevention – Block External Domain/User action in DLP for SharePoint/OneDrive

From Microsoft's description: “With this enhancement, admins can configure DLP policies that block file access for specific external domains or individual users.”

Block External Domain/User action in Microsoft Purview DLP for SharePoint and OneDrive, gives organizations stronger control over who can access sensitive files. With this enhancement, admins can configure DLP policies that block file access for specific external domains or individual users. This capability helps prevent unintended exposure by external users and supports enterprise compliance requirements.

Affected: Microsoft Purview

Related changes

• Microsoft Purview: Data Loss Prevention – File Quarantine Action in DLP for SharePoint/OneDrive · Data
• Microsoft Purview compliance portal: Data Loss Prevention - Decoupling of Policy tips and Email notifications while configuring rules on Data Loss Prevention for Sharepoint and Onedrive · Data
• Microsoft Purview: Data Loss Prevention - Data Loss Prevention to safeguard sensitive information from external web search in Microsoft 356 Copilot and Copilot Chat · Data
• Microsoft Purview: Data Loss Prevention - User Based Aggregation of DLP Alerts · Data
• Microsoft Purview: Data Lifecycle Management – Hard delete capability for OneDrive and SharePoint through secure priority cleanup workflows · Data
• Microsoft Purview: Data Security Triage Agent in Data Loss Prevention - Reasoning Trace and Confidence Score for agent-triaged alerts · Data

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