Resolved after 21 hours 28 minutes, affecting Email, on September 4, 2026.
Microsoft has acknowledged the incident, and services are beginning to recover https://x.com/MSFT365Status - please reach out to Microsoft directly for more updates.
Affected components
Update timeline
- identified Sep 04, 2026, 10:01 AM UTC
We have identified a downstream issue affecting email sending, causing delayed email delivery. We're monitoring the issue.
- monitoring Sep 04, 2026, 01:06 PM UTC
We have identified the problem as an issue with the downstream Microsoft-supported services. We will provide another update as soon as more information becomes available.
- monitoring Sep 04, 2026, 03:18 PM UTC
Microsoft has acknowledged the incident, and services are beginning to recover https://x.com/MSFT365Status - please reach out to Microsoft directly for more updates.
- resolved Sep 05, 2026, 07:29 AM UTC
This incident has been resolved.
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