Integrated Report Suspicious with Classic Outlook
Timeline · 4 updates
- investigating Mar 19, 2026, 10:30 PM UTC
We are currently investigating an issue with Integrated Report Suspicious with Classic Outlook. It appears to be related to the latest Classic Outlook version 2602. We are encouraging customers to utilize Report Suspicious for Exchange, Email Warning Tags Report Suspicious, or OWA to successfully report.
- identified Mar 20, 2026, 05:46 PM UTC
Proofpoint has identified the root cause to be a regression in the latest release of "Classic Outlook for Windows" on the "Current" release channel of Outlook. Proofpoint is currently testing a workaround. We will provide an update when that is available to our customers.
- monitoring Mar 20, 2026, 07:04 PM UTC
Proofpoint has tested and released the solution for Integrated Report Suspicious on Classic Outlook to all environments. Affected users will need to restart their Outlook clients for the fix to take effect.
- resolved Mar 23, 2026, 02:03 PM UTC
This issue has been resolved. We are seeing successful usage of Integrated Report Suspicious with the previously impacted version of Outlook.