Outage in SparkPost

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

Resolved Minor
May 18, 2025 - Started 5 months ago - Lasted about 4 hours
Official incident page

Incident Report

We are investigating an increase in delivery latency for a small percentage of outbound messages. (NOTE: This does not impact our customers hosted in the EU.)
Components affected
SparkPost SMTP Delivery - USA

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Latest Updates ( sorted recent to last )
RESOLVED 5 months ago - at 05/18/2025 07:03PM

Latencies have remained normal since the last update. We are confident the situation is fully resolved.

MONITORING 5 months ago - at 05/18/2025 03:11PM

Latencies are now back to normal. We will continue monitoring, but do not expect any further deviation.

INVESTIGATING 5 months ago - at 05/18/2025 02:58PM

We are investigating an increase in delivery latency for a small percentage of outbound messages. (NOTE: This does not impact our customers hosted in the EU.)

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