Method IT incident
Exchange Online - Users may encounter delays when sending or receiving email messages
Resolved after 3 days 16 hours, affecting Microsoft 365 and Microsoft 365 (Microsoft 365 — Microsoft Exchange Online), on March 10, 2025.
Microsoft have confirmed that the fix has now rolled out to all instances and the issue has been resolved.
Affected components
Update timeline
- investigating Mar 10, 2025, 04:00 PM UTC
Microsoft have advised that some users may encounter delays when sending or receiving email messages. They are investigating a potential issue with their infrastructure and will update shortly on findings.
- identified Mar 10, 2025, 05:02 PM UTC
Microsoft have identified the issue causing delays to sending and receiving emails and are currently working on a plan to resolve the issue.
- monitoring Mar 11, 2025, 04:13 PM UTC
Microsoft have deployed a fix which is now being pushed out to production. Microsoft are confident that this will resolve the issue, and will update on when they believe this issue is fully resolved.
- monitoring Mar 12, 2025, 09:42 AM UTC
Microsoft have advised that the fix deployment encountered an issue that is resulting in some delays in reaching out to all tenants. They are working on getting the fix deployment accelerated out this morning.
- resolved Mar 14, 2025, 08:08 AM UTC
Microsoft have confirmed that the fix has now rolled out to all instances and the issue has been resolved.
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