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M365 Archive

RM577546 - Outlook: Mark as read improvements

Microsoft 365 Roadmap

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.

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Roadmap ID

577546

View in M365 Roadmap

Published

Oct 22, 2026

Status

In development

Release

General Availability

Platforms

Desktop
Web

Service

Outlook

Tag

In development
General Availability
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

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

Discussion

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