Elevated error rates for some SparkPost Enterprise customers injecting via SMTP in the US region.

Incident Report for SparkPost

Resolved

This incident has been resolved.

Posted May 19, 2023 - 16:15 EDT

Monitoring

A fix has been implemented and we are monitoring the results.

Posted May 19, 2023 - 14:51 EDT

Identified

The issue has been identified and a fix is being implemented.

Posted May 19, 2023 - 13:16 EDT

Investigating

We are experiencing an elevated level of SMTP errors for some SparkPost Enterprise customers injecting using SMTP. Please retry any 4xx errors.
Note: This issue does not impact our customers hosted in the EU.
Note: Outbound message delivery is not impacted.

Posted May 19, 2023 - 12:30 EDT

This incident affected: SMTP API (SMTP API - USA).