Microsoft has resolved a machine learning issue that incorrectly flagged Gmail emails as spam in Exchange Online, with the problem affecting users since April 25. The company reverted to a previous, functional version of the ML model on May 1, effectively addressing the false positive issue. Microsoft is investigating ways to enhance their ML detection process to prevent similar issues in the future.
Keypoints :
- Issue tracked as EX1064599 began impacting users on April 25, 2023.
- Legitimate Gmail emails were wrongly sent to the junk folder due to ML model errors.
- Microsoft reverted the faulty ML model to a working version on May 1, resolving the issue.
- Admins could set custom allow rules to prevent Gmail emails from being flagged as spam during the incident.
- The incident highlights recurring challenges with ML models in Exchange Online since early 2023.
- Microsoft is committed to improving its ML detection processes to minimize future false positives.
- Specific customer or regional impacts have not been disclosed by Microsoft.