Enable the Microsoft Report Message or the Report Phishing add-ins

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If you're an admin in a Microsoft 365 organization with Exchange Online mailboxes, we recommend that you use the Submissions page in the Microsoft Defender portal. For more information, see Use Admin Submission to submit suspected spam, phish, URLs, and files to Microsoft.

The Microsoft Report Message and Report Phishing add-ins for Outlook and inbuild report button on Outlook on the web (formerly known as Outlook Web App or OWA), new Outlook for Windows, legacy Outlook for Windows makes it easy for users to report false positives and false negatives to Microsoft for analysis. False positives are good email that was blocked or sent to the Junk Email folder. False negatives are unwanted email or phishing that was delivered to the Inbox.

Microsoft uses these user-reported messages to improve the effectiveness of email protection technologies. For example, suppose that people are reporting many messages using the Report Phishing add-in. This information surfaces in the Security Dashboard and other reports. Your organization's security team can use this information as an indication that anti-phishing policies might need to be updated.

The Report Message add-in provides the option to report both spam and phishing messages. The Report Phishing add-in provides the option to report phishing messages only.

Admins can install and enable the add-ins for the organization. Both add-ins are available through Centralized Deployment. Individual users can install the add-ins for themselves.

After the add-in is installed and enabled, users see the following icons based on their Outlook client: