SparkPost incident
Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)
Minor Vendor's status page →
Resolved after 1 hour, affecting SMTP Delivery - USA, on October 28, 2026.
A fix was implemented and we are seeing sustained delivery recovery.
Affected components
SMTP Delivery - USA
Update timeline
- investigating Oct 28, 2026, 07:37 PM UTC
We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the EU.)
- identified Oct 28, 2026, 07:48 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring Oct 28, 2026, 08:00 PM UTC
A fix has been implemented and we are monitoring the results.
- identified Oct 28, 2026, 08:03 PM UTC
We are continuing to work on a fix for this issue.
- monitoring Oct 28, 2026, 08:37 PM UTC
A fix was implemented and we are seeing sustained delivery recovery.
- resolved Oct 28, 2026, 08:37 PM UTC
This incident has been resolved.
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