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October 12, 2022

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Microsoft Purview Information Protection: User-defined permissions support domain name restrictions

Microsoft 365 Suite, Microsoft 365 Experts

From Microsoft Corporation
Technical Bulletin: MC442111 · Published Oct 4, 2022

Message Summary

Coming soon to public preview and general availability, we’re updating the options for custom permissions, also referred to as user-defined permissions, to support domain name restrictions.

This message is associated with Microsoft 365 Roadmap ID 98131.

When this will happen:

Rollout to public preview will begin in mid-October and is expected to be complete by late-October.

Rollout to general availability will begin in early November and is expected to be complete by end of November. 

How this will affect your organization:

Within Microsoft Office files (Word, Excel, PowerPoint), when you choose a sensitivity label configured for user-defined permissions, you can now use domain names to restrict file access to specific individuals, or to all individuals from that domain. For example, you can specify “” or “” and permissions will be restricted based on those parameters.

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What you need to do to prepare:

If you have previously configured user-defined permissions for your organization, no further action is needed to enable this feature.

Configure and manage sensitivity labels in the Microsoft Purview compliance portal

Learn more: 

Additional information


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