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Roadmap ID 518287 LaunchedGCC

Outlook: LDAP directory support for S/MIME in New Outlook

Microsoft 365 Message Center Archive by Merill Fernando
Microsoft 365 roadmap entry

Summary

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

Status
Launched
General availability target
May 2026
Preview target
Not published
Products
Outlook
Clouds
Worldwide (Standard Multi-Tenant), GCC
Release phases
General Availability
Platforms
Desktop
Source created
27 Oct 2025
Source modified
6 Jul 2026 · 4mo ago
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 23:12 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current

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