# SparkPost in April 2021: incidents, uptime and changes

> SparkPost in April 2021: 6 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/2021/04
Last updated: 2021-05-01T00:00:00Z

- Incidents posted: 6 (major/critical: 0) · Maintenance: 1
- By vendor impact label: minor 4, none 2
- Uptime (vendor-reported): 100% free of major/critical incidents, 99.52% free of any incident; outage time 0 min, incident time 3 h 27 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 0
- Previous month: [March 2021](https://rewindex.com/company/sparkpost/2021/03.md) · Next: [May 2021](https://rewindex.com/company/sparkpost/2021/05.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 and SparkPost Enterprise customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/63tpyn7g0tw6.md) | minor | 2021-04-01 15:26 UTC | 2021-04-01 15:46 UTC | 20 min | resolved |
| [Some subaccounts are intermittently sending through a previously assigned IP Pool](https://rewindex.com/company/sparkpost/incidents/brrpswrnc355.md) | minor | 2021-04-01 20:13 UTC | 2021-04-01 21:26 UTC | 1.2 h | resolved |
| [Elevated error rates for some SparkPost and SparkPost Enterprise customers injecting via SMTP in the US region.](https://rewindex.com/company/sparkpost/incidents/1q5z978gcrv7.md) | minor | 2021-04-06 18:43 UTC | 2021-04-06 19:59 UTC | 1.3 h | resolved |
| [Alerts API Error rates high for both US and EU cloud customers](https://rewindex.com/company/sparkpost/incidents/rv8sv5z5bggk.md) | none | 2021-04-24 03:01 UTC | 2021-04-24 03:14 UTC | 13 min | resolved |
| [Increased Bounce rate for Apple iCloud.com domain](https://rewindex.com/company/sparkpost/incidents/3dhtn3d1jzfh.md) | none | 2021-04-26 13:05 UTC | 2021-04-26 17:46 UTC | 4.7 h | resolved |
| [We are seeing an increase in "delays"/4xx errors on outbound message delivery for some SparkPost and SparkPost Enterprise customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/kvpt57m2sfc6.md) | minor | 2021-04-29 17:59 UTC | 2021-04-29 18:37 UTC | 38 min | resolved |

## Maintenance

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [\[Scheduled\] Suppressions API Maintenance](https://rewindex.com/company/sparkpost/incidents/kt13hr46jqdv.md) | maintenance | 2021-04-15 21:03 UTC | 2021-04-15 23:30 UTC | 2.5 h | resolved |

## Cite this

SparkPost posted 6 status incidents in April 2021 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/sparkpost/2021/04
- Citation: SparkPost, “SparkPost in April 2021” (2021-04-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/sparkpost/2021/04 (CC BY 4.0).
- Markdown link: `[SparkPost: SparkPost in April 2021 (2021-04-01)](https://rewindex.com/company/sparkpost/2021/04)`


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Canonical: https://rewindex.com/company/sparkpost/2021/04 · Markdown: https://rewindex.com/company/sparkpost/2021/04.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:50:08.756Z