We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)

Incident Report for SparkPost

Resolved

This incident has been resolved.
Posted Jul 30, 2020 - 17:07 EDT

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Jul 30, 2020 - 15:51 EDT

Investigating

We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)
Posted Jul 30, 2020 - 15:25 EDT
This incident affected: SMTP Delivery (Outbound Message Delivery) (SMTP Delivery - USA).