# SparkPost: DKIM is failing for messages that contain a CC header

> SparkPost status incident “DKIM is failing for messages that contain a CC header” on 2022-04-21: impact none (vendor’s label), 6.4 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c
Last updated: 2022-04-22T01:42:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2022-04-21 19:18 UTC · Resolved: 2022-04-22 01:42 UTC · Duration: 6.4 h
- Updates: 1
- [Vendor status page: https://status.sparkpost.com/incidents/fkzndzwpdg4c](https://status.sparkpost.com/incidents/fkzndzwpdg4c)
- [Company: SparkPost](https://rewindex.com/company/sparkpost.md)

## Timeline of updates

- **resolved** 2022-04-22 01:42 UTC: This incident has been resolved. We will publish a post-mortem.

_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 2022-04-21 19:18 UTC, resolved after 6.4 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c
- Citation: SparkPost, “DKIM is failing for messages that contain a CC header” (2022-04-21 19:18 UTC). Archived by Rewindex: https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c (CC BY 4.0).
- Markdown link: `[SparkPost: DKIM is failing for messages that contain a CC header (2022-04-21)](https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c)`


---
Canonical: https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c · Markdown: https://rewindex.com/company/sparkpost/incidents/fkzndzwpdg4c.md · JSON: https://rewindex.com/api/v1/companies/sparkpost/incidents/fkzndzwpdg4c · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:08:06.918Z