check before: 2025-03-01
Product:
Outlook, Purview Information Protection, Windows
Platform:
US Instances, Windows Desktop, World tenant
Status:
Launched
Change type:
Links:
Details:
New Outlook for Windows will support S/MIME (Secure/Multipurpose Internet Mail Extensions) signing and encryption as an outcome of sensitivity labels. Admins can use set label advanced setting to define the label to have S/MIME sign or encryption or both, and emails with those labels applied will enforce S/MIME sign and encrypt accordingly. #newoutlookforwindows
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2025-02-25
updated:
2025-05-02
Docu to Check
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MS workload name
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summary for non-techies**
The new Outlook for Windows feature allows users to apply sensitivity labels to emails, enabling S/MIME to sign or encrypt messages for enhanced security, ensuring that only intended recipients can access sensitive information.
Direct effects for Operations**
S/MIME Implementation Issues
If the change to support S/MIME is implemented without proper preparation, users may face issues with email signing and encryption, leading to potential data breaches or loss of sensitive information.
- roles: IT Administrators, End Users
- references: https://techcommunity.microsoft.com/t5/outlook-blog/outlook-mip-sensitivity-label-support-s-mime-in-new-outlook-for/ba-p/3731230, https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/announcing-new-outlook-for-windows/
User Experience Disruption
Without adequate training and communication regarding the new S/MIME features, users may experience confusion and frustration, resulting in decreased productivity and potential errors in email handling.
- roles: End Users, Support Staff
- references: https://techcommunity.microsoft.com/t5/outlook-blog/outlook-mip-sensitivity-label-support-s-mime-in-new-outlook-for/ba-p/3731230, https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/announcing-new-outlook-for-windows/
Configutation Options**
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Data Protection**
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IT Security**
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explanation for non-techies**
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change history
| Date | Property | old | new |
| 2025-05-02 | RM Status | Rolling out | Launched |
| 2025-03-13 | RM Status | In development | Rolling out |
Last updated 3 weeks ago ago
