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MC484251: Outlook: S/MIME sensitivity label support natively on Outlook for Windows

Outlook for Windows will support S/MIME (Secure/Multipurpose Internet Mail Extensions) sign and encryption as sensitivity label outcome. If admins define the label to have S/MIME sign, encryption, or both and emails with those labels will enforce S/MIME accordingly.

This message is associated with Microsoft 365 Roadmap ID 100062.

Outlook for Windows will support S/MIME (Secure/Multipurpose Internet Mail Extensions) sign and encryption as sensitivity label outcome. Admins can define the label to have S/MIME sign, encryption, or both and emails with those labels will enforce S/MIME accordingly.

MC484251: Outlook: S/MIME sensitivity label support natively on Outlook for Windows

When this will happen

Current Channel Preview: We have started rolling this out and expect to complete by mid-December 2022.

Current Channel: We will begin rolling mid-Dec 2022 and expect to complete by early Jan 2023.

How this will affect your organization

If you are using Outlook for Win32 built-in labeling, and you have S/MIME label enabled, you will see those S/MIME label shows up in your Outlook for windows Sensitivity dropdown menu, and you could apply those labels with S/MIME certificate to enforce S/MIME sign or encryption, or both.

What you need to do to prepare

If you do not use S/MIME on emails, this will not impact you.

If you do want to use S/MIME on emails, please refer [Configure a label to apply S/MIME protection in Outlook] to how to set that up on labels.

Message ID: MC484251
Published: 2022-12-13
Updated: 2022-12-13
Cloud instance(s): DoD, GCC, GCC High, Worldwide (Standard Multi-Tenant)
Platform(s): Desktop
Release phase(s): Current Channel, Semi-Annual Enterprise Channel, General Availability

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