(Resumed) Users may be unable to send or receive email messages using Outlook on the web or desktop client

Microsoft issued an incident report on 2 Dec 2024 (Mon)

Users Affected Microsoft Users 
Start Time 2 Dec 2024 (Mon) 10:08 P.M.
End Time 4 Dec 2024 (Wed) 2:30 A.M.
User Impact Users may be unable to send or receive email messages using Outlook on the web or desktop client
Incident Details Final status:
The fix has been deployed, and Microsoft has confirmed the databases have returned to a healthy state and are functioning within acceptable thresholds. After monitoring to ensure service health was stable, they are verified impact.
Status Restored

Last update by Microsoft: 4 Dec 2024 (Wed) 5:23 A.M.