Outbound message delivery is delayed/slow for some SparkPost customers (US and EU regions)

Incident Report for SparkPost

Resolved

This incident has been resolved.

Posted Mar 04, 2026 - 20:24 EST

We are observing recovery in email delivery performance and are actively monitoring.

Posted Mar 04, 2026 - 20:00 EST

We are investigating an increase in delivery latency for some outbound messages.

Posted Mar 04, 2026 - 19:51 EST

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