Outage in SparkPost

Transmissions API - Elevated error rate in US region

Resolved Minor
October 20, 2025 - Started about 12 hours ago - Lasted about 1 hour
Official incident page

Incident Report

We are currently investigating an increased error rate in the Transmissions API in the US region. A small percentage of customers may experience disruptions. Our team is actively working to identify the root cause and resolve the issue.
Components affected
SparkPost Transmissions API - USA

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Latest Updates ( sorted recent to last )
RESOLVED about 11 hours ago - at 10/20/2025 12:09PM

This incident has been resolved.

INVESTIGATING about 12 hours ago - at 10/20/2025 10:55AM

We are currently investigating an increased error rate in the Transmissions API in the US region. A small percentage of customers may experience disruptions. Our team is actively working to identify the root cause and resolve the issue.

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