Microsoft is working on a new version of Outlook that customers can manually activate on their desktop.
Information: https://aka.ms/newoutlookforwindows
Feature comparison: https://aka.ms/newOutlookFeatureComparisonÂ
The new version of Outlook is not yet feature-complete with the existing Outlook, especially the ability to correctly identify S/MIME signatures is currently (as of June 2024) not available.
SEPPmail currently recommends to stay with the old, full-featured version of Outlook until all security-relevant features like S/MIME support are integrated into the new version of Outlook.
Microsoft notifications for the Outlook update can be blocked, see Block push for new Outlook version.
