MC531737 · Exchange Online, Microsoft 365 Experts, Outlook on the Web
From Microsoft Corporation
Technical Bulletin MC531737 · Published Mar 22, 2023
Message Summary
Outlook on the web will support S/MIME (Secure/Multipurpose Internet Mail Extensions) sign and encryption as sensitivity label outcome. Customer admins could use set-label advanced setting to define the label to have S/MIME sign or encryption or both, and emails with those labels applied will enforce S/MIME sign and encrypt accordingly, and also it will support content marking of the label.
This message is associated with Microsoft 365 Roadmap ID 109582
When this will happen:
Targeted Release: We will begin rolling out in mid-April and expect to complete rollout by late April.
Standard Release: We will begin rolling out in early May and expect to complete rollout by late May.
How this will affect your organization:
If you have defined S/MIME email labels for your organization, you will see that S/MIME label also available in Outlook on the web to apply. If you do not have any S/MIME labels today, then it will not impact your organization.
What you need to do to prepare:
If you would like to start using S/MIME labels, please refer the admin instructions how to enable S/MIME labels via set-Label cmdlets advanced setting.
