Outlook: Unverified Senders- warn users about spoofing and impersonation attempts

Microsoft 365 Roadmap ID: 491471
Launched
Outlook
Worldwide (Standard Multi-Tenant)
General Availability
Android iOS
July 2025

Description

When you receive messages from senders we weren't able to verify as safe, you'll see a tag in the message list and a ribbon on the reading pane warning you to be cautious when interacting with it.

Change History

December 17, 2025 at 12:41 AM Updated
Status
Previous
Rolling out
New
Launched
Modified Date
Previous
2025-07-22T23:15:27.000Z
New
2025-12-17T00:15:13.000Z
July 23, 2025 at 2:01 AM Updated
Status
Previous
In development
New
Rolling out
Modified Date
Previous
2025-07-18T22:15:17.000Z
New
2025-07-22T23:15:27.000Z
July 19, 2025 at 12:02 AM Updated
Platforms
Previous
Android
New
Android, iOS
Modified Date
Previous
2025-06-18T17:30:36.000Z
New
2025-07-18T22:15:17.000Z

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