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Product
Outlook
Saved release status
Launched
Original publication
Feature overview
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
Archived release information
March CY2025
Source: Saved Microsoft roadmap archive Feature ID: 482201
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