- Level
- confirmed
- Worst impact
- Partial outage
- Components
- SMTP Delivery - USA
- Regions
- us
What to do
Check whether you use SparkPost SMTP Delivery - USA in 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 4h 34m it lasted.
Anything that failed between 2026-03-12 06:51 UTC and 2026-03-12 11:25 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 5
- investigating
We are currently investigating issues with delivery of email impacting US region.
provider
- monitoring
System is fully recovered and under monitoring.
provider
- investigating
Email delivery in US is impacted, experiencing elevated delays.
provider
- monitoring
System functionality has been fully restored and all emails are being transmitted correctly without added latencies; we are actively monitoring.
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-f05b384fa1
Is SparkPost still down?
No, this incident was resolved 2026-03-12 11:25 UTC. For SparkPost's live state, see https://down.guide/sparkpost.
How long did it last?
4h 34m, from 2026-03-12 06:51 UTC to 2026-03-12 11:25 UTC, by the times SparkPost posted.
What was affected?
SparkPost named SMTP Delivery - USA in 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.