M365 Archive
Microsoft 365 Roadmap

RM577546Outlook: Mark as read improvements

Summary

Mark as read will be updated to better match user expectations. When using the Unread filter, items will also be marked as read in coherence with the existing "Mark as read when using the reading pane" setting. Additionally, opening an item in a popout will now mark it as read regardless of that setting.

Description

Mark as read will be updated to better match user expectations. When using the Unread filter, items will also be marked as read in coherence with the existing "Mark as read when using the reading pane" setting. Additionally, opening an item in a popout will now mark it as read regardless of that setting.

#newoutlookforwindows

GA date: November CY2026