Microsoft 365 Roadmap

Outlook
LDAP directory support for S/MIME in New Outlook

Feature details and release plans from a build snapshot of Microsoft's official roadmap feed.

All Microsoft 365 updates
Product
Outlook
Release status
Launched
RSS publication

Feature overview

The new Outlook now supports LDAP (Lightweight Directory Access Protocol) directories for sending S/MIME encrypted emails. This allows users to add an LDAP directory in the new Outlook and use it to fetch recipients’ certificates from the configured directory when sending S/MIME encrypted messages. #newoutlookforwindows

Expected release date

May CY2026

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 518287

RSS snapshot built . Refreshed on rebuild and deployment.

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