# SparkPost in September 2023: incidents, uptime and changes

> SparkPost in September 2023: 5 incidents on its status page (0 major or critical), 100% free of major or critical incidents (vendor-reported). From Rewindex’s archive of SparkPost’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/sparkpost/2023/09
Last updated: 2023-10-01T00:00:00Z

- Incidents posted: 5 (major/critical: 0) · Maintenance: 7
- By vendor impact label: minor 5
- Uptime (vendor-reported): 100% free of major/critical incidents, 96.35% free of any incident; outage time 0 min, incident time 26 h 15 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [August 2023](https://rewindex.com/company/sparkpost/2023/08.md) · Next: [October 2023](https://rewindex.com/company/sparkpost/2023/10.md) · [All months](https://rewindex.com/company/sparkpost/reports.md) · [SparkPost](https://rewindex.com/company/sparkpost.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/7zh0t8bxcpmz.md) | minor | 2023-09-07 15:31 UTC | 2023-09-07 19:42 UTC | 4.2 h | resolved |
| [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/76p0ws0lnn5j.md) | minor | 2023-09-08 16:28 UTC | 2023-09-08 19:15 UTC | 2.8 h | resolved |
| [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/hntc9g6gzv97.md) | minor | 2023-09-13 15:12 UTC | 2023-09-13 17:33 UTC | 2.4 h | resolved |
| [Webhook delays for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/kll2b4lf9whx.md) | minor | 2023-09-14 18:04 UTC | 2023-09-14 18:31 UTC | 27 min | resolved |
| [Elevated 5xx Transmissions API error rates and Webhook delays for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/klgyrq74bxfp.md) | minor | 2023-09-18 18:09 UTC | 2023-09-19 10:38 UTC | 16 h | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Sending Domains API - US region](https://rewindex.com/company/sparkpost/incidents/khm5dmctbw9r.md) | maintenance | 2023-09-05 23:00 UTC | 2023-09-05 23:35 UTC | 35 min | resolved |
| [\[Scheduled\] Database Maintenance - EU Region](https://rewindex.com/company/sparkpost/incidents/wzjvgw674nfv.md) | maintenance | 2023-09-06 21:00 UTC | 2023-09-06 22:00 UTC | 1.0 h | resolved |
| [\[Scheduled\] Database Maintenance - US Region](https://rewindex.com/company/sparkpost/incidents/3nr6vrmmxr2q.md) | maintenance | 2023-09-06 22:01 UTC | 2023-09-06 23:01 UTC | 1.0 h | resolved |
| [\[Scheduled\] Upgrade of email delivery platform in US region](https://rewindex.com/company/sparkpost/incidents/gcxqq5y4p4f9.md) | maintenance | 2023-09-06 23:01 UTC | 2023-09-06 23:37 UTC | 36 min | resolved |
| [\[Scheduled\] Upgrade of email delivery platform in US region](https://rewindex.com/company/sparkpost/incidents/0f8cfscxf5wp.md) | maintenance | 2023-09-09 23:00 UTC | 2023-09-09 23:38 UTC | 38 min | resolved |
| [\[Scheduled\] Upgrade of email delivery platform in US region](https://rewindex.com/company/sparkpost/incidents/wwr1q025kdn0.md) | maintenance | 2023-09-14 00:02 UTC | 2023-09-14 04:12 UTC | 4.2 h | resolved |
| [\[Scheduled\] Upgrade of email delivery platform in the US region](https://rewindex.com/company/sparkpost/incidents/bm3mtznhmk6f.md) | maintenance | 2023-09-15 00:01 UTC | 2023-09-15 02:38 UTC | 2.6 h | resolved |

## Cite this

SparkPost posted 5 status incidents in September 2023 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sparkpost/2023/09
- Citation: SparkPost, “SparkPost in September 2023” (2023-09-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sparkpost/2023/09 (CC BY 4.0).
- Markdown link: `[SparkPost: SparkPost in September 2023 (2023-09-01)](https://rewindex.com/company/sparkpost/2023/09)`


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Canonical: https://rewindex.com/company/sparkpost/2023/09 · Markdown: https://rewindex.com/company/sparkpost/2023/09.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:59:25.701Z