SparkPost had 29 outages in the last 2 years totaling 9h 53m of downtime — averaging 1.2 incidents per month.
There were 29 SparkPost outages since May 18, 2025 totaling 9h 53m of downtime. Each is summarised below — incident details, duration, and resolution information.
We are currently investigating an increased error rate in the Transmissions API in the US region. A small percentage of customers may experience disruptions. Our team is actively working to identify the root cause and resolve the issue.
This incident has been resolved.
We are investigating a login issue via Email address and Password resulting in a Captcha error
This incident has been resolved.
We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the US.)
The issue has been identified and a fix is being implemented.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
We are actively investigating a rise in delivery latency for outbound messages to Yahoo. Our current assessment indicates the issue may lie with Yahoo, and we are continuing to monitor the situation.
The delays have cleared up, as Yahoo appears to have resolved the issue. We will continue to monitor the situation.
The delays have cleared up and we are no longer seeing delays for Yahoo.