Message Summary Updated April 21, 2021: We have updated the title of this post for clarity. Thank you for your feedback. We will retire the Malware detected in email report from Microsoft Defender for Office 365 beginning June 14, 2021. You are receiving this message because our reporting indicates your organization may be using the Malware detected in email report. Key points Timing: June 14, 2021 Action: transition from the Malware detected in email report to the Threat protection status report What you need to do to prepare Instead of using Malware detected in email report, we recommend you use the Threat protection status report, which is where we will continue to invest our resources. You might want update your training and documentation as appropriate.