Grouped notifications in Outlook [MC1385580]

Message ID: MC1385580

[What and Why:]

To help reduce notification fatigue and improve focus, Outlook will automatically group email notifications that arrive within a few seconds into a single alert. This enhancement supports personal and team productivity by minimizing interruptions while ensuring users stay informed of new messages.

[Rollout Schedule:]

• General Availability (Production): Rollout will begin in late June 2026 and is expected to complete by late-July2026
• General Availability (GCC): Rollout will begin in late July 2026 and is expected to complete by mid-August 2026
• General Availability (GCC High): Rollout will begin in mid-August 2026 and is expected to complete by mid-September 2026

Impact on Your Organization:

Who is affected: All users in Production, GCC, and GCC High tenants using new Outlook or Outlook on the web

Platforms/Services: Outlook on the web, New Outlook for Windows

What will happen:

• Users will receive a single grouped notification when multiple emails arrive within a short time window (a few seconds).
• Selecting the notification will open the latest email in the inbox.
• Additional unread emails included in the group will be visible in the inbox.
• The feature will be enabled by default.
• Users can manage this behavior in Settings > General > Notifications > Email > Group notifications.

[Action Required/Recommendations:]

No admin action is required

Recommended steps:

• Inform users about the updated notification behavior to reduce confusion.
• Update internal helpdesk documentation if you reference Outlook notification behavior.
• If desired, guide users on customizing their notification preferences via Outlook settings.

[Compliance considerations:]

• Users can enable or disable grouped notifications in Outlook settings.
• No other compliance impacts have been identified.

Source: Microsoft

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