SparkPost incident
Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)
Minor Vendor's status page →
Resolved after 54 minutes, affecting SMTP Delivery - USA, on September 17, 2026.
A fix has been implemented and we are monitoring the results.
Affected components
SMTP Delivery - USA
Update timeline
- investigating Sep 17, 2026, 09:06 AM UTC
We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the EU.)
- monitoring Sep 17, 2026, 09:47 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Sep 17, 2026, 10:00 AM UTC
This incident has been resolved.
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