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Iterable

Email send delays for some US-hosted SparkPost traffic

Partial outage Lasted 1m · started · Iterable's page

Level
confirmed
Worst impact
Partial outage
Components
Global Campaign Sends
Regions
eu, us

What to do

  • Check whether you use Iterable Global Campaign Sends in eu, us. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 1m it lasted.

    Anything that failed between 2026-02-24 19:51 UTC and 2026-02-24 19:52 UTC may need a replay.
  • Subscribe to Iterable's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=iterable works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Iterable 2

  1. monitoring

    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 was not impacted. All customers using ESPs other than Sparkpost were similarly 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 contact Support.

    provider

  2. resolved

    SparkPost’s API issue has been resolved, and we’re no longer seeing elevated 5xx errors or increased latency. Incident has resolved.

    provider

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Corrections

None so far.

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Questions about DWN-859bc4e1ee

Is Iterable still down?

No, this incident was resolved 2026-02-24 19:52 UTC. For Iterable's live state, see https://down.guide/iterable.

How long did it last?

1m, from 2026-02-24 19:51 UTC to 2026-02-24 19:52 UTC, by the times Iterable posted.

What was affected?

Iterable named Global Campaign Sends in eu, us.

What caused it?

Iterable hasn't published a root cause. If it does, it shows here.

Where does this come from?

Iterable's official status page, https://status.iterable.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.