Outage in SparkPost
Delayed delivery for some messages in EU
Resolved MinorIncident Report
Summary AI Generated
SparkPost experienced delayed message delivery affecting some users in the European region through their SMTP API service. The incident impacted email delivery times for messages processed through the EU infrastructure for 41 minutes. The issue was identified and resolved with a fix implementation, restoring normal delivery speeds.
We are looking into why some messages are seeing delayed delivery.
Components affected
SparkPost SMTP API - EUROPETrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 14 hours ago - at 05/09/2026 10:17PM
This incident has been resolved.
MONITORING
about 15 hours ago - at 05/09/2026 10:05PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
about 15 hours ago - at 05/09/2026 09:50PM
The issue has been identified and a fix is being implemented.
INVESTIGATING
about 15 hours ago - at 05/09/2026 09:39PM
We are looking into why some messages are seeing delayed delivery.
Latest SparkPost outages
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Outbound message delivery is delayed/slow for some SparkPost customers (US and EU regions) - 2 months ago
Microsoft Mail Delivery Delays and Temporary Rejections - 2 months ago
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