Outbound message delivery is delayed/slow for some SparkPost customers using the Transmissions API (EU hosted only)

Incident Report for SparkPost

Resolved

This incident has been resolved.

Posted Sep 13, 2022 - 20:28 EDT

Monitoring

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

Posted Sep 13, 2022 - 18:15 EDT

Identified

We are investigating an increase in Transmissions API response time and delivery latency for some outbound messages when injected via the Transmissions API. (NOTE: This does not impact our customers hosted in the US.).

Posted Sep 13, 2022 - 17:19 EDT

This incident affected: SMTP Delivery (Outbound Message Delivery) (SMTP Delivery - EUROPE).