Resolved after 10 hours 7 minutes, affecting Inbound Email Security and Inbound Email Security and 1 more, on January 22, 2026.
Microsoft are reporting the issue as largely resolved. Queues have returned to normal Outbound services but we're still processing a significant backlog Inbound on our US infrastructure. We will continue to monitor.
Affected components
Update timeline
- monitoring Jan 22, 2026, 08:10 PM UTC
We're currently monitoring a situation affecting message delivery to Microsoft Services. https://x.com/MSFT365Status/status/2014422298506285161
- monitoring Jan 22, 2026, 08:17 PM UTC
We're continuing to monitor the issue and will keep you abreast of any official developments. We recommend for our impacted customers to also follow. https://status.cloud.microsoft/m365/
- resolved Jan 23, 2026, 06:18 AM UTC
Microsoft are reporting the issue as largely resolved. Queues have returned to normal Outbound services but we're still processing a significant backlog Inbound on our US infrastructure. We will continue to monitor.
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