SparkPost incident
Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)
SparkPost experienced a minor incident on September 24, 2025 affecting SMTP Delivery - EUROPE, lasting 1h 46m. The incident has been resolved; the full update timeline is below.
Affected components
SMTP Delivery - EUROPE
Update timeline
- investigating Sep 24, 2025, 03:34 PM UTC
We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the US.)
- identified Sep 24, 2025, 03:56 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring Sep 24, 2025, 04:52 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Sep 24, 2025, 05:20 PM UTC
This incident has been resolved.