SparkPost: We experienced an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)
Timeline of updates
- resolved
We experienced an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only) during the timeframe of 14:52 UTC to 15:00 UTC. Note: This issue does not impact our SparkPost customers hosted in the EU.
From SparkPost’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on status.sparkpost.com (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by SparkPost, started 2021-01-14 15:00 UTC, resolved after 0 min, 1 update(s).
- Title
- We experienced an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)
- Vendor
- SparkPost
- Date
- URL
- https://rewindex.com/company/sparkpost/incidents/0njf25qfnk5b
SparkPost profileRecent SparkPost incidentsAll outages on January 14, 2021SparkPost in January 2021MarkdownJSON