Companies/SparkPost/Incidents

SparkPost: Increased error rates and latency from our APIs

Affected components: Metrics API - Metrics API - USAMetrics API - USABlocklist API - Blocklist API - USABlocklist API - USATransmissions API - Transmissions API - USATransmissions API - USASparkPost Application - USASparkPost Application (WebUI) - SparkPost Application - USASMTP API - SMTP API - USASMTP API - USAEvents API - Events API - USAEvents API - USASending Domains API - Sending Domains API - USASending Domains API - USAAlerts API - Alerts API - USAAlerts API - USASuppression List API - Suppression List API - USASuppression List API - USA

Timeline of updates

1. investigating2025-12-10 03:40 UTC

   We are looking into increased error rates and high latency across our APIs. This could be related to a third party outage.

2. monitoring2025-12-10 04:46 UTC

   One of our third party providers is experiencing increased latency. This is causing a very small amount of the traffic hitting our APIs to error or have high latency. We are monitoring to ensure the latency and error rates don't increase while waiting for their team to resolve the issue.

3. resolved2025-12-10 06:09 UTC

   This incident has been resolved.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

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