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

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

Added to roadmap: 27 okt 2025 | Last modified: 6 jul 2026

What changed in Microsoft 365 this week? →