Email Send Delays with Partial Sparkpost outage on US-WEST-2.

Incident Report for Iterable

Resolved

All Sparkpost sends that were previously delayed have been delivered and Sparkpost reports that their systems are now fully functional. If you continue to experience any issues please contact Support.
Posted Jul 24, 2026 - 12:09 PDT

Update

We are continuing to monitor Sparkpost outage as they work to continue draining the backlog of delayed messages.

Sparkpost estimates that they expect to have most email delivered within the next 30-45 minutes.
Posted Jul 24, 2026 - 10:40 PDT

Update

We are continuing to monitor Sparkpost outage as they work to continue draining the backlog of delayed messages.
Posted Jul 24, 2026 - 09:40 PDT

Monitoring

We are currently experiencing email delivery delays due to a partial outage affecting SparkPost's US-West-2 region. Emails continue to be accepted and queued, but delivery is delayed. Our team is working closely with SparkPost to resolve this issue. We will provide updates as more information becomes available. Next update in 15m.
Posted Jul 24, 2026 - 09:30 PDT

Investigating

Email sends delayed for US-hosted customers using SparkPost in US-WEST-2 region.
Posted Jul 24, 2026 - 09:30 PDT
This incident affected: Global Campaign Sends.