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

Incident Report for SparkPost

Resolved

This incident has been resolved.

Posted Aug 19, 2026 - 15:58 EDT

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

Posted Aug 19, 2026 - 15:44 EDT

We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the US.)

Posted Aug 19, 2026 - 14:52 EDT

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