Resolved after 7 days, affecting API, on August 26, 2025.
We identified a misconfiguration in Microsoft’s endpoint classification that affected Mio’s ability to maintain valid subscriptions for message delivery. Microsoft deployed a hotfix and, with additional configuration updates from Mio, full service has been restored. We are also implementing improvements to further strengthen resilience against similar issues in the future.
Affected components
Update timeline
- identified Aug 26, 2025, 01:11 PM UTC
We have identified the root cause of an issue causing slow delivery of messages from Microsoft Teams to Google. Our engineering team is actively working on a fix and will deploy the solution as soon as possible. We will provide updates as progress is made.
- identified Aug 28, 2025, 03:05 PM UTC
We are continuing to work on a fix for this issue.
- resolved Sep 02, 2025, 01:54 PM UTC
We identified a misconfiguration in Microsoft’s endpoint classification that affected Mio’s ability to maintain valid subscriptions for message delivery. Microsoft deployed a hotfix and, with additional configuration updates from Mio, full service has been restored. We are also implementing improvements to further strengthen resilience against similar issues in the future.
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