# SparkPost: Elevated 5xx API error rate on Transmissions API (US hosted only)

> SparkPost status incident “Elevated 5xx API error rate on Transmissions API (US hosted only)” on 2021-09-01: impact none (vendor’s label), 33 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6
Last updated: 2021-09-01T22:11:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2021-09-01 21:38 UTC · Resolved: 2021-09-01 22:11 UTC · Duration: 33 min
- Updates: 1
- [Vendor status page: https://status.sparkpost.com/incidents/272x88h9kvb6](https://status.sparkpost.com/incidents/272x88h9kvb6)
- [Company: SparkPost](https://rewindex.com/company/sparkpost.md)

## Timeline of updates

- **resolved** 2021-09-01 22:11 UTC: This incident has been resolved

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: none) posted by SparkPost, started 2021-09-01 21:38 UTC, resolved after 33 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6
- Citation: SparkPost, “Elevated 5xx API error rate on Transmissions API (US hosted only)” (2021-09-01 21:38 UTC). Archived by Rewindex: https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6 (CC BY 4.0).
- Markdown link: `[SparkPost: Elevated 5xx API error rate on Transmissions API (US hosted only) (2021-09-01)](https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6)`


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Canonical: https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6 · Markdown: https://rewindex.com/company/sparkpost/incidents/272x88h9kvb6.md · JSON: https://rewindex.com/api/v1/companies/sparkpost/incidents/272x88h9kvb6 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:17:23.261Z