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

Incident Report for SparkPost

Resolved

This incident has been resolved.
Posted Aug 28, 2020 - 14:09 EDT

Monitoring

It appears to have been a temporary condition and we are monitoring.
Posted Aug 28, 2020 - 13:36 EDT

Investigating

We are experiencing an elevated level of SMTP errors for some SparkPost and 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 Aug 28, 2020 - 13:20 EDT
This incident affected: SMTP API (SMTP API - USA).