Resolved after 1 hour 16 minutes, affecting EU: Server-Side: Mail Routing - Office 365 and US: Server-Side: Mail Routing - Office 365 and 1 more, on June 29, 2026.
The incident has been resolved by our engineers and mail routing is operational across all regions. Customers may have experience mail delivery delays but these would have been delivered following retries.
Affected components
Update timeline
- investigating Jun 29, 2026, 07:35 AM UTC
We were alerted to an issue with mail flow in our primary data centers. Our engineers are currently investigating and trying to resolve asap
- identified Jun 29, 2026, 08:00 AM UTC
Our engineers have identified the issue and are mitigating. Customers may still experience delays in mail delivery
- monitoring Jun 29, 2026, 08:26 AM UTC
We have mitigated the issue and mail flow is working again in all regions. We are monitoring now to ensure this has resolved the issue.
- resolved Jun 29, 2026, 08:51 AM UTC
The incident has been resolved by our engineers and mail routing is operational across all regions. Customers may have experience mail delivery delays but these would have been delivered following retries.
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