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

Updates

1. Resolved

   12 months ago

   We have seen fully recovery from this delay event. A postmortem will be posted shortly detailing the root cause and steps we have taken to prevent a reoccurrence.

2. Monitoring

   12 months ago

   We continue to see significant recovery on the delayed messages. Continuing to monitor and will post the next status after full recovery.

3. Monitoring

   12 months ago

   The MTA1 cluster is beginning to stabilize and we are seeing active recovery. We will continue to monitor and provide updates as the cluster fully recovers.

4. Monitoring

   12 months ago

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

5. Identified

   12 months ago

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

6. Investigating

   12 months ago

   We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the EU.)