# SparkPost: Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-02-24 15:01 UTC · Resolved: 2026-02-24 18:17 UTC · Duration: 3.3 h
- Updates: 4 · Affected components: SMTP Delivery (Outbound Message Delivery) - SMTP Delivery - USA, SMTP Delivery - USA
- [Vendor status page: https://stspg.io/3nsfqqkz5ywc](https://stspg.io/3nsfqqkz5ywc)
- [Company: SparkPost](https://rewindex.com/company/sparkpost.md)

## Timeline of updates

- **investigating** 2026-02-24 15:01 UTC: We are currently investigating this issue. No messages are lost.
- **identified** 2026-02-24 17:19 UTC: The issue has been identified and a fix is being implemented.
- **monitoring** 2026-02-24 17:34 UTC: A fix has been implemented and we are monitoring the results.
- **resolved** 2026-02-24 18:17 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/sparkpost/incidents/6mkqwwdjjr7f · Markdown: https://rewindex.com/company/sparkpost/incidents/6mkqwwdjjr7f.md · JSON: https://rewindex.com/api/v1/companies/sparkpost/incidents/6mkqwwdjjr7f · Generated 2026-10-19T21:09:32.447Z