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
Roadmap › 518287
Outlook: LDAP directory support for S/MIME in New Outlook
- General availability
- 2026-05
- Preview
- —
- Added
- 27 Oct 2025
- Last modified
- 06 Jul 2026 23:00 UTC
- First archived
- 25 Aug 2026
- Release rings
- General Availability
- Clouds
- Worldwide (Standard Multi-Tenant), GCC