Affected components
Update timeline
- investigating Mar 16, 2026, 12:37 PM UTC
We are currently investigating an issue affecting mail ingress and egress globally. From 11:30 to 12:00 UTC some customers may have experienced delays or disruptions in email processing. Our engineering team is actively investigating the cause. We will provide further updates as soon as more information becomes available.
- monitoring Mar 16, 2026, 12:41 PM UTC
System appears to be operational. Our engineering team will continue to monitor this from our end.
- resolved Mar 16, 2026, 01:16 PM UTC
Earlier today (from 11:31 to 12:09 UTC) we experienced a performance degradation of email ingress and egress globally across tenants in our public clusters. This was caused by abnormally expensive processing of a set of malformed emails sent to a large number of recipients. We will continue to monitor and investigate how our systems can be updated to improve resilience.
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