Outage in Iterable
Email send delays for some US-hosted SparkPost traffic
Resolved MajorIncident Report
Summary AI Generated
Email sends for US-hosted Iterable customers using SparkPost experienced delays due to elevated 5xx errors and increased API latency from SparkPost's Transmissions API. EU-hosted customers were not affected by this issue. The incident was resolved after 5 minutes when SparkPost fixed their API issues, restoring normal email processing.
Email sends for US-hosted customers using SparkPost were delayed due to elevated 5xx errors and increased API latency from SparkPost’s Transmissions API. EU-hosted traffic is not impacted.
SparkPost has indicated the incident is resolved. We’re monitoring outbound email queues to ensure sends are fully processing as expected. If you continue to experience issues, please retry.
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Latest Updates ( sorted recent to last )
RESOLVED
about 17 hours ago - at 02/24/2026 07:52PM
SparkPost’s API issue has been resolved, and we’re no longer seeing elevated 5xx errors or increased latency. Incident has resolved.
MONITORING
about 17 hours ago - at 02/24/2026 07:51PM
Email sends for US-hosted customers using SparkPost were delayed due to elevated 5xx errors and increased API latency from SparkPost’s Transmissions API. EU-hosted traffic is not impacted.
SparkPost has indicated the incident is resolved. We’re monitoring outbound email queues to ensure sends are fully processing as expected. If you continue to experience issues, please retry.
Latest Iterable outages
app.iterable.com was unavailable in the US region, returning 502 Bad Gateway errors to users. - about 19 hours ago
Iterable web elevated error rates - about 2 months ago
API Update Timing Out - about 2 months ago
Delayed Message Sends - 3 months ago
Platform Impact – Third-Party Vendor Disruption (Regional) - 4 months ago
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