# SparkPost: We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)

> SparkPost status incident “We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)” on 2018-09-12: impact minor (vendor’s label), 46 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c
Last updated: 2018-09-12T22:18:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2018-09-12 21:32 UTC · Resolved: 2018-09-12 22:18 UTC · Duration: 46 min
- Updates: 1
- [Vendor status page: https://status.sparkpost.com/incidents/b1pgf3yf9m1c](https://status.sparkpost.com/incidents/b1pgf3yf9m1c)
- [Company: SparkPost](https://rewindex.com/company/sparkpost.md)

## Timeline of updates

- **resolved** 2018-09-12 22:18 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: minor) posted by SparkPost, started 2018-09-12 21:32 UTC, resolved after 46 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c
- Citation: SparkPost, “We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)” (2018-09-12 21:32 UTC). Archived by Rewindex: https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c (CC BY 4.0).
- Markdown link: `[SparkPost: We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only) (2018-09-12)](https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c)`


---
Canonical: https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c · Markdown: https://rewindex.com/company/sparkpost/incidents/b1pgf3yf9m1c.md · JSON: https://rewindex.com/api/v1/companies/sparkpost/incidents/b1pgf3yf9m1c · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T15:17:40.126Z