Outbound message delivery is delayed/slow for some SparkPost and SparkPost Enterprise customers (US hosted only)

Incident Report for SparkPost

Resolved

The external customer RoadRunner appears to have resolved their issue. Delayed mail will continue to be delivered and then return to normal.
Posted Nov 18, 2021 - 18:24 EST

Investigating

We are investigating an increase in delivery latency for some outbound messages. We are having issues delivering to RoadRunner mailboxes and are being delayed.
Posted Nov 18, 2021 - 18:03 EST
This incident affected: SMTP Delivery (Outbound Message Delivery) (SMTP Delivery - USA).