Outage in SparkPost

Outbound message delivery to Yahoo is delayed/slow

Resolved Minor
July 24, 2025 - Started 1 day ago - Lasted about 4 hours
Official incident page

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Outage Details

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.
Components affected
SparkPost SMTP Delivery - USA
Latest Updates ( sorted recent to last )
RESOLVED 1 day ago - at 07/24/2025 09:20PM

The delays have cleared up and we are no longer seeing delays for Yahoo.

MONITORING 1 day ago - at 07/24/2025 08:38PM

The delays have cleared up, as Yahoo appears to have resolved the issue. We will continue to monitor the situation.

INVESTIGATING 1 day ago - at 07/24/2025 05:41PM

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.

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