Microsoft is investigating a widespread Exchange Online service issue that is disrupting email send and receive functions for customers across North America, APAC, and Europe. Affected users are seeing SMTP deferrals and connection errors while Microsoft works to identify the root cause and clear mail queue backlogs. #ExchangeOnline #Microsoft #EX1331830
Keypoints
- Microsoft is addressing a major Exchange Online mail flow issue.
- The incident affects customers in North America, APAC, and Europe.
- Users are seeing SMTP deferral and connection closure errors.
- Email delivery delays and failures are lasting over an hour for some users.
- Microsoft is reviewing reports and mail queue backlogs to find the root cause.