- Level
- confirmed
- Worst impact
- Degraded
- Components
- SMTP Delivery - USA
- Regions
- eu, us
What to do
Check whether you use SparkPost SMTP Delivery - USA 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 54m it lasted.
Anything that failed between 2026-09-17 09:06 UTC and 2026-09-17 10:00 UTC may need a replay.Subscribe to SparkPost's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=sparkpost works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from SparkPost 3
- investigating
We are investigating an increase in delivery latency for some outbound messages. (NOTE: This does not impact our customers hosted in the EU.)
provider
- monitoring
A fix has been implemented and we are monitoring the results.
provider
- resolved
This incident has been resolved.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-7dd36be20e
Is SparkPost still down?
No, this incident was resolved 2026-09-17 10:00 UTC. For SparkPost's live state, see https://down.guide/sparkpost.
How long did it last?
54m, from 2026-09-17 09:06 UTC to 2026-09-17 10:00 UTC, by the times SparkPost posted.
What was affected?
SparkPost named SMTP Delivery - USA in eu, us.
What caused it?
SparkPost hasn't published a root cause. If it does, it shows here.
Where does this come from?
SparkPost's official status page, https://status.sparkpost.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.