As communicated in four previously published posts for Microsoft Defender and Microsoft Exchange Online starting in 2022 and ending with MC960818 (Updated) Microsoft Outlook for iOS/Android: New reporting buttons integrated with Microsoft Defender for Office 365 (February 2024), the built-in Report button is available for all Microsoft Outlook platforms. Learn more: Report phishing and suspicious emails in Outlook for admins - Microsoft Defender for Office 365 | Microsoft Learn.

This message announces the maintenance mode status of the Report Message add-in and Report Phishing add-in and explains how to disable all add-ins so users only see one reporting option in Outlook.

This message applies to new Outlook for Windows desktop, Outlook for Mac desktop, Outlook for the web, and Outlook for iOS/Android.