Outage in SparkPost
Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)
Resolved MinorIncident Report
Summary AI Generated
SparkPost experienced delayed outbound message delivery affecting US-hosted customers for 3.3 hours. The issue impacted SMTP delivery services in the USA region, though no messages were lost during the incident. The problem was identified, fixed, and resolved after a monitoring period.
We are currently investigating this issue. No messages are lost.
Components affected
SparkPost SMTP Delivery - USANeed to monitor SparkPost outages?
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Latest Updates ( sorted recent to last )
RESOLVED
3 days ago - at 02/24/2026 06:17PM
This incident has been resolved.
MONITORING
3 days ago - at 02/24/2026 05:34PM
A fix has been implemented and we are monitoring the results.
IDENTIFIED
3 days ago - at 02/24/2026 05:19PM
The issue has been identified and a fix is being implemented.
INVESTIGATING
3 days ago - at 02/24/2026 03:01PM
We are currently investigating this issue. No messages are lost.
Latest SparkPost outages
Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only) - 3 days ago
Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only) - 7 days ago
Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only) - 9 days ago
SSO Login Failures Due to reCAPTCHA Configuration Issue - about 1 month ago
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