March 2026: Integrated Report Suspicious with Classic Outlook
The Integrated Report Suspicious feature in Proofpoint Security Awareness stopped working with Classic Outlook version 2602 due to a regression in Microsoft's latest release, affecting PhishAlarm services across U.S., Europe, and Asia Pacific regions for 87.6 hours. Proofpoint identified the root cause as an issue with Classic Outlook for Windows on the "Current" release channel and developed a workaround solution. The issue was resolved after Proofpoint deployed their fix to all environments, requiring affected users to restart their Outlook clients to apply the solution.