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SparkPost: Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only)

MajorStatus: resolvedStarted Resolved (34 min)6 updatesstspg.io (opens in new tab)

Affected components: Transmissions API - Transmissions API - USATransmissions API - USA

Timeline of updates

  1. investigating

    We are experiencing an elevated level of errors and latency on the Transmissions API (injection API) for some SparkPost customers. Please retry any 5xx error. Note: This issue does not impact SparkPost customers hosted in the EU.

  2. investigating

    We are continuing to investigate this issue.

  3. investigating

    We are continuing to investigate this issue. We still see 5xx errors on mail injections and degradation.

  4. identified

    The team has identified the root cause. There is a core networking issue that has impacted sending across the clusters.

  5. monitoring

    A fix has been implemented and we are monitoring the results.

  6. resolved

    This incident has been resolved.

Changes Rewindex caught on this incident

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

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