M365 Archive

RM518288 - Outlook: Support for Storing S/MIME Certificates in Contacts in New Outlook

Microsoft 365 Roadmap

Summary

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

Roadmap ID

518288

View in M365 Roadmap

Last Updated

May 19, 2026

Published Oct 24, 2025

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Status

In development

Release

General Availability

Platforms

Desktop

Service

Outlook

Tag

In development
General Availability
Worldwide (Standard Multi-Tenant)
GCC

Cloud

GCC
Worldwide (Standard Multi-Tenant)

Description

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

GA date: May CY2026

Version history

2 versions tracked

Updated 1 time since Oct 24, 2025. Microsoft Message Center only ever shows the current version; this archive preserves the history.

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  1. May 19, 2026 · 10:45 PMLatest · v2

    Changed: Body

  2. Oct 24, 2025 · 10:00 PMOriginal · v1

    Changed: Initial version

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