Microsoft 365

Outlook: Support for Storing S/MIME Certificates in Contacts in New Outlook

#518288 · Launched · May 2026 rollout

Microsoft 365 roadmap: what is new · All roadmap items · Microsoft

Launched
Rollout startMay 2026

The new Outlook will now allow users to store S/MIME encryption certificates within their Contacts. This enables users to save certificates directly in contact entries and use them to send S/MIME encrypted emails to the contacts. #newoutlookforwindows

Added to roadmap: 24 okt 2025 | Last modified: 6 jul 2026