Update from Microsoft:

After a period of extended monitoring, we’ve confirmed through customer reports and service health telemetry that the issue is resolved.

Update from Microsoft:
We’ve isolated the cause of mail queue delays and have restarted the affected infrastructure to drain stalled queues. We’ll remain in an extended monitoring phase until this draining is completed and we can consider the incident fully recovered.

This quick update is designed to give the latest information on this issue.

Update from Microsoft:

We’re monitoring the progress of the fix, which has been deployed to approximately 60% of the affected environments. We’re continuing our manual restarts on the remaining impacted machines.

This quick update is designed to give the latest information on this issue.

Users may be unable to access Exchange Online using the following impacted connection methods:
- Outlook on the web
- Outlook desktop client
- Representational State Transfer (REST)
- Exchange ActiveSync (EAS)

Users may be unable to use the following features within Microsoft Teams:
- Users are unable to create or update Virtual Events, including webinars and Town Halls.
- Users may be unable to access or modify their calendar in Microsoft Teams. This would include loading calendar, viewing meetings, creating/updating meetings and joining meetings.
- Users are unable to create chat, add users and create or edited meetings.
- Users are unable to create or modify new teams and channels.
- Users may be unable to update presence.
- Users may be unable to use the search function.
- Users may not see updated list of files and links failing to load within the Chat shared tab.

Users may experience the following issues with Microsoft Purview:
- Users may be unable to access the Purview Portal, or Purview Solutions.
- Users may experience delays in policy stamping and with Adaptive Scope Evaluations.

Users may be unable to export content or set and view labels within Microsoft Fabric.

Some Microsoft Fabric users with Purview Information Protection Policies with sensitivity labels enabled, may be unable to use interactive operations on Power BI Desktop format files and reports, including export operations on Fabric artifacts with Sensitivity labels applied.

Users may be unable to use the search feature within SharePoint Online.

Users may be unable to perform the following actions within Microsoft Defender for Office365.
- Users may be unable to create simulations, simulation payloads or end user notifications.
- Users may experience issues with delivery for end user notifications and simulation messages
- Users may experiences issues with viewing simulation reports, and content.