# SparkPost

- Domain: sparkpost.com · Category: comms
- Status page: https://status.sparkpost.com (polled every 10 minutes; now operational)
- Incidents archived: 416 (31 major/critical, 121 maintenances), history since 2016-05-19
- Last 90 days: 7 incidents; open now: 0
- Silently edited or deleted incidents: 0

## How SparkPost reports incidents

Not enough incidents to compare yet (needs 20 in a year and 10 with full update detail; has 39 and 0).

## Dependencies (observed)

| Depends on | Signal | Blamed in | Hosting | Integration | Events | Declared |
| --- | --- | --- | --- | --- | --- | --- |
| AWS (Amazon Web Services) | high | 2 | 0 | 0 | 4 |  |
| Apple | medium | 0 | 0 | 2 | 0 |  |

| Depended on by | Signal | Blamed in | Hosting | Integration | Events | Declared |
| --- | --- | --- | --- | --- | --- | --- |
| [Braze](https://rewindex.com/company/braze.md) | high | 6 | 0 | 0 | 0 |  |
| [Iterable](https://rewindex.com/company/iterable.md) | high | 2 | 0 | 0 | 0 |  |

## Incidents by year

| Year | Incidents | Major/critical | Maintenance | Median duration |
| --- | --- | --- | --- | --- |
| 2016 | 28 | 1 | 0 | 3.6 h |
| 2017 | 53 | 2 | 2 | 1.5 h |
| 2018 | 48 | 1 | 9 | 1.2 h |
| 2019 | 33 | 3 | 3 | 54 min |
| 2020 | 47 | 2 | 4 | 1.4 h |
| 2021 | 57 | 8 | 9 | 1.3 h |
| 2022 | 36 | 3 | 11 | 2.1 h |
| 2023 | 26 | 1 | 33 | 2.3 h |
| 2024 | 36 | 7 | 30 | 3.3 h |
| 2025 | 29 | 0 | 19 | 1.8 h |
| 2026 | 23 | 3 | 1 | 1.7 h |

## Pricing

_No structured pricing extracted yet._

## Recent notable changes

| When (UTC) | Change | Summary |
| --- | --- | --- |
| 2026-07-24 11:14 UTC | [Critical incident: Partial Outage and Delivery Issues in US-West-2 Region](https://rewindex.com/change/i5743f8b60f1f1c.md) | pending |
| 2026-03-12 06:51 UTC | [Major incident: Email delivery in US region affected](https://rewindex.com/change/i03637e1e2839e9.md) | pending |
| 2026-02-24 19:07 UTC | [Major incident: Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only)](https://rewindex.com/change/i10bb3415f536f7.md) | pending |

Full timeline: [SparkPost changes](https://rewindex.com/company/sparkpost/changes.md)
## Silent edits and deletions

_None._

## Page change history

_None._

_No page changes since the first snapshot._

## Latest 100 incidents

| Started (UTC) | Incident | Impact | Duration | Edited |
| --- | --- | --- | --- | --- |
| 2026-10-11 17:51 UTC | [Increased message delays in US and EU due to DNS resolution errors](https://rewindex.com/company/sparkpost/incidents/lx6bx26rl37z.md) | minor | 3.1 h |  |
| 2026-10-01 17:05 UTC | [Mail delivery delays](https://rewindex.com/company/sparkpost/incidents/j4py0g2mby89.md) | minor | 31 min |  |
| 2026-09-17 09:06 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/vsnw7z1xgtr5.md) | minor | 54 min |  |
| 2026-09-14 14:19 UTC | [Health Score and Cohort data is delayed](https://rewindex.com/company/sparkpost/incidents/d55kqv9gn3tk.md) | minor | 2.5 h |  |
| 2026-08-27 18:03 UTC | [Elevated hard bounces for Apple private relay recipients (privaterelay.appleid.com)](https://rewindex.com/company/sparkpost/incidents/x1gj50g5q6nq.md) | minor | 4.9 h |  |
| 2026-08-19 18:52 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/581qbr5vlmj1.md) | minor | 1.1 h |  |
| 2026-07-24 11:14 UTC | [Partial Outage and Delivery Issues in US-West-2 Region](https://rewindex.com/company/sparkpost/incidents/gz7xng93whxg.md) | critical | 7.5 h |  |
| 2026-06-29 15:58 UTC | [There is a delay effecting some mail sending in EU.](https://rewindex.com/company/sparkpost/incidents/dfjbtfhns9w3.md) | minor | 48 min |  |
| 2026-05-12 12:48 UTC | [Issue with updating payment information](https://rewindex.com/company/sparkpost/incidents/w321sv6sqhsp.md) | none | 50 min |  |
| 2026-05-11 18:55 UTC | [Elevated 5xx Suppression List API error rates and latency for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/cz6f92rfx50b.md) | minor | 1.1 h |  |
| 2026-05-09 21:39 UTC | [Delayed delivery for some messages in EU](https://rewindex.com/company/sparkpost/incidents/kjff0f15tnp8.md) | none | 38 min |  |
| 2026-05-07 09:31 UTC | [Intermittent email injection failures affecting a small subset of customers in Europe](https://rewindex.com/company/sparkpost/incidents/8889mnbg77qz.md) | minor | 26 h |  |
| 2026-04-05 18:27 UTC | [Increased bounce or delay rate for Apple domains](https://rewindex.com/company/sparkpost/incidents/1g6yntvgd0qk.md) | minor | 34 min |  |
| 2026-03-12 06:51 UTC | [Email delivery in US region affected](https://rewindex.com/company/sparkpost/incidents/k7n5ptqxgwck.md) | major | 4.6 h |  |
| 2026-03-05 00:51 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US and EU regions)](https://rewindex.com/company/sparkpost/incidents/qlfrdw5lr201.md) | minor | 33 min |  |
| 2026-02-26 17:55 UTC | [Microsoft Mail Delivery Delays and Temporary Rejections](https://rewindex.com/company/sparkpost/incidents/h9dv0txjszz0.md) | minor | 24 h |  |
| 2026-02-24 19:07 UTC | [Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/ndjn00g5vwm3.md) | major | 34 min |  |
| 2026-02-24 15:01 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/6mkqwwdjjr7f.md) | minor | 3.3 h |  |
| 2026-02-20 16:06 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/ycbzc8n03qyc.md) | minor | 27 min |  |
| 2026-02-18 14:51 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/xqjhjwwcdgtq.md) | minor | 2.3 h |  |
| 2026-01-27 16:39 UTC | [SSO Login Failures Due to reCAPTCHA Configuration Issue](https://rewindex.com/company/sparkpost/incidents/rgwfqhjd5j24.md) | none | 9 d |  |
| 2026-01-15 11:06 UTC | [Delays in sending emails to Microsoft domains](https://rewindex.com/company/sparkpost/incidents/y14h298x6g7s.md) | minor | 12 d |  |
| 2026-01-14 16:27 UTC | [Delays in sending emails to yahoo.com domain in EU and US regions](https://rewindex.com/company/sparkpost/incidents/q7mz6qsfgtdv.md) | none | -207 min |  |
| 2025-12-11 18:36 UTC | [Delay in event processing.](https://rewindex.com/company/sparkpost/incidents/txzvd5xzvsqq.md) | minor | 3.9 h |  |
| 2025-12-11 16:34 UTC | [Longer than expected delays](https://rewindex.com/company/sparkpost/incidents/3w8jlwzhgggm.md) | minor | 2.0 h |  |
| 2025-12-10 21:22 UTC | [Data processing delays](https://rewindex.com/company/sparkpost/incidents/d99dhd54g8cc.md) | minor | 3.2 h |  |
| 2025-12-10 03:40 UTC | [Increased error rates and latency from our APIs](https://rewindex.com/company/sparkpost/incidents/p27349zbcfsm.md) | minor | 2.5 h |  |
| 2025-12-08 02:24 UTC | [Data Process is delayed for Sparkpost US - EU](https://rewindex.com/company/sparkpost/incidents/7yckprqnw5xb.md) | minor | 3.1 h |  |
| 2025-12-05 19:16 UTC | [Data processing delays for SparkPost customers - US and EU regions](https://rewindex.com/company/sparkpost/incidents/vynxpny87z8y.md) | minor | 3.1 h |  |
| 2025-11-28 09:40 UTC | [Yahoo Mail Sending Delays](https://rewindex.com/company/sparkpost/incidents/99bgtg5sqlgz.md) | minor | 37 min |  |
| 2025-11-27 14:22 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/8tzm0ltv1q7y.md) | minor | 1.0 h |  |
| 2025-11-27 11:24 UTC | [High response times on the API](https://rewindex.com/company/sparkpost/incidents/g1pfd0z0lqn5.md) | minor | 1.6 h |  |
| 2025-11-21 09:08 UTC | [Intermittent email api failures impacting EU customers](https://rewindex.com/company/sparkpost/incidents/94ztfkqcydgh.md) | none | 1.4 h |  |
| 2025-11-20 15:56 UTC | [Webhook delays for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/40d56r4qg861.md) | minor | 2.5 h |  |
| 2025-11-11 14:35 UTC | [SMTP message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/721509613qvs.md) | minor | 1.6 h |  |
| 2025-11-10 22:06 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/wlrtmxjvsr8t.md) | minor | 1.1 h |  |
| 2025-11-04 21:33 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/wc0g40hdpbb6.md) | minor | 3 min |  |
| 2025-10-28 18:51 UTC | [Outbound message delivery is slightly delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/cfl19y8gbl5b.md) | minor | 1.9 h |  |
| 2025-10-20 10:55 UTC | [Transmissions API - Elevated error rate in US region](https://rewindex.com/company/sparkpost/incidents/sxy48dhlt7ys.md) · [AWS us-east-1 outage](https://rewindex.com/events/2025-10-20-aws-us-east-1) | minor | 1.2 h |  |
| 2025-10-13 08:28 UTC | [Captcha error for login with password](https://rewindex.com/company/sparkpost/incidents/qhtvpsbcbctw.md) | none | 3.2 h |  |
| 2025-09-24 15:34 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/yqx1cm8yvfwn.md) | minor | 1.8 h |  |
| 2025-09-12 14:55 UTC | [Data processing delays](https://rewindex.com/company/sparkpost/incidents/lk9gz7bwg1tx.md) | minor | 6.7 h |  |
| 2025-07-24 17:41 UTC | [Outbound message delivery to Yahoo is delayed/slow](https://rewindex.com/company/sparkpost/incidents/45j1lzc7lwjh.md) | minor | 3.6 h |  |
| 2025-05-18 14:58 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/l24bdlh7dfqz.md) | minor | 4.1 h |  |
| 2025-05-16 15:53 UTC | [Relay Webhook delays in EU](https://rewindex.com/company/sparkpost/incidents/0v5brkbympzz.md) | minor | 25 min |  |
| 2025-05-13 05:22 UTC | [Elevated percentage of API calls failing](https://rewindex.com/company/sparkpost/incidents/pnn15xghwjlm.md) | minor | 6.1 h |  |
| 2025-05-12 16:39 UTC | [Relay Webhook delays in EU](https://rewindex.com/company/sparkpost/incidents/r7cqjp29yw74.md) | minor | 1.1 h |  |
| 2025-03-28 16:03 UTC | [Delay Processing Delays for March 26th](https://rewindex.com/company/sparkpost/incidents/4w08qdmm4gbt.md) | none | 7.2 h |  |
| 2025-03-20 08:51 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/qvtzdng111f3.md) | none | 55 min |  |
| 2025-02-26 17:24 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/34yn32v9ts01.md) | none | 1.8 h |  |
| 2025-01-15 12:27 UTC | [Elevated error rates for some SparkPost customers injecting via SMTP in the US region.](https://rewindex.com/company/sparkpost/incidents/3qgmtvbs7m52.md) | none | 17 min |  |
| 2025-01-14 16:13 UTC | [EU Delay in message processing](https://rewindex.com/company/sparkpost/incidents/rnc9wqj7hws1.md) | minor | 10 min |  |
| 2024-12-23 15:32 UTC | [Delayed email delivery in EU](https://rewindex.com/company/sparkpost/incidents/8c3hvtc57kq5.md) | minor | 1.8 h |  |
| 2024-11-29 08:36 UTC | [Delayed email delivery in EU west 1](https://rewindex.com/company/sparkpost/incidents/t987cly748ll.md) | minor | 7.8 h |  |
| 2024-11-24 09:31 UTC | [delayed email delivery in EU west 1](https://rewindex.com/company/sparkpost/incidents/bb7hgtqvsqft.md) | minor | 25 min |  |
| 2024-11-22 16:00 UTC | [High load on SMTP processing](https://rewindex.com/company/sparkpost/incidents/gqb6pmpvmnd0.md) | minor | 4.8 h |  |
| 2024-11-22 14:23 UTC | [Elevated 5xx for Engagement Tracker for SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/fd43ysp7l54t.md) | minor | 7.0 h |  |
| 2024-11-20 22:21 UTC | [Elevated 5xx for Engagement Tracker for SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/nj2t6wx6b5gd.md) | none | 28 h |  |
| 2024-11-05 20:31 UTC | [Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/lq1szzzctl65.md) | critical | 7 min |  |
| 2024-11-05 16:53 UTC | [Elevated 5xx error rates on engagement service for SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/0pgqwncypg37.md) | critical | 3.4 h |  |
| 2024-10-18 23:17 UTC | [SparkPost application (webUI) errors on some pages](https://rewindex.com/company/sparkpost/incidents/0sxlb12j0nds.md) | minor | 19 min |  |
| 2024-10-15 14:48 UTC | [Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/jszl1f7hlzx9.md) | major | 3.2 h |  |
| 2024-10-08 12:26 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/jt6s33k2tzfv.md) | minor | 1.5 h |  |
| 2024-09-27 17:47 UTC | [Yahoo Missing Spam Complaints](https://rewindex.com/company/sparkpost/incidents/t831m4n0ctqz.md) | none | 4.5 h |  |
| 2024-09-11 19:35 UTC | [Elevated 5xx error rates and latency on Suppression List API for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/fnb7s18d9glg.md) | minor | 45 min |  |
| 2024-09-11 17:29 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/bmtdx9d8m8ky.md) | minor | 37 min |  |
| 2024-07-10 05:38 UTC | [Email Deliverability Issues](https://rewindex.com/company/sparkpost/incidents/x22shd3w994n.md) | minor | 4.4 h |  |
| 2024-06-14 16:52 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/m2hsqt1v47mx.md) | minor | 28 min |  |
| 2024-06-14 12:30 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/7f87cnll58lz.md) | minor | 1.1 h |  |
| 2024-06-13 20:03 UTC | [Alerts are not being sent.](https://rewindex.com/company/sparkpost/incidents/9c12rxml4kdl.md) | critical | 1.6 h |  |
| 2024-05-23 09:39 UTC | [Analytics/metrics dashboards are not loading or taking a long time to load for US accounts](https://rewindex.com/company/sparkpost/incidents/6qg637wtbgf4.md) | major | 14 h |  |
| 2024-05-21 15:10 UTC | [Current Metrics Data not Available in US](https://rewindex.com/company/sparkpost/incidents/nqyvn86h24rv.md) | minor | 4.4 h |  |
| 2024-05-03 17:10 UTC | [Metrics API experiencing slowness](https://rewindex.com/company/sparkpost/incidents/k79mqd1ljfms.md) | major | 2.0 h |  |
| 2024-04-30 18:26 UTC | [Data processing delays for SparkPost customers - US region](https://rewindex.com/company/sparkpost/incidents/s080scy3yc3r.md) | minor | 48 h |  |
| 2024-04-19 14:10 UTC | [Signals Analytics reports are slow to load](https://rewindex.com/company/sparkpost/incidents/jc72w1g78fsb.md) | none | 4 d |  |
| 2024-04-18 17:09 UTC | [Data processing delays](https://rewindex.com/company/sparkpost/incidents/h0v6hm0rwmw5.md) | none | 9.6 h |  |
| 2024-04-18 13:00 UTC | [SparkPost application (webUI) is slow to load or timing out](https://rewindex.com/company/sparkpost/incidents/ddxvlzgyh1ms.md) | minor | 1.1 h |  |
| 2024-04-10 21:30 UTC | [Elevated 5xx Transmissions API error rates and latency for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/8gjdh7mrg7ny.md) | minor | 13 min |  |
| 2024-03-28 18:43 UTC | [Data processing delays for SparkPost customers - US region](https://rewindex.com/company/sparkpost/incidents/pm0g3w70sw62.md) | minor | 3 d |  |
| 2024-03-14 16:35 UTC | [Elevated 5xx Transmissions API error rates for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/0l8hg4jn3b2r.md) | minor | 32 min |  |
| 2024-02-28 18:23 UTC | [Deliverability metric missing IP Pool Name and Template ID filters February 23rd, 2024](https://rewindex.com/company/sparkpost/incidents/n8p60c294d1n.md) | minor | 5.4 h |  |
| 2024-02-23 13:10 UTC | [Data processing delays for SparkPost customers - US region](https://rewindex.com/company/sparkpost/incidents/s9xht1r0f59c.md) | minor | 29 h |  |
| 2024-02-19 17:27 UTC | [Delay in Email Delivery for Some US Customers](https://rewindex.com/company/sparkpost/incidents/h9w6lqj225pv.md) | major | 11 min |  |
| 2024-02-15 16:37 UTC | [Ongoing issues for messages destined to Office 365 domains](https://rewindex.com/company/sparkpost/incidents/y85ytzrq6ww0.md) | minor | 21 d |  |
| 2024-02-09 21:29 UTC | [Elevated opens and clicks for messages delivered to Office 365 addresses](https://rewindex.com/company/sparkpost/incidents/k5hdpln7wbbs.md) | none | 3 d |  |
| 2024-02-06 17:56 UTC | [We are observing an elevated rate of spam foldering and open rates for messages destined to Office 365 domains](https://rewindex.com/company/sparkpost/incidents/8fn1mphdk7hp.md) | none | 28 h |  |
| 2024-01-24 13:08 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/flr04p65k6v6.md) | minor | 1.2 h |  |
| 2024-01-16 20:47 UTC | [Webhooks: Duplicate message events for some customers (US REGION)](https://rewindex.com/company/sparkpost/incidents/9d7tfl2ps4c1.md) | none | 49 min |  |
| 2023-12-18 04:30 UTC | [SMTP performance degradation in US cluster](https://rewindex.com/company/sparkpost/incidents/6lxyt1vx6v2z.md) | none | 0 min |  |
| 2023-12-11 17:48 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/yq2jfm6xb2pr.md) | none | 21 min |  |
| 2023-12-01 12:50 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/bkd13cm1l5s9.md) | minor | 1.4 h |  |
| 2023-11-27 21:10 UTC | [Slow delivery to Comcast](https://rewindex.com/company/sparkpost/incidents/psgyy0mrh233.md) | none | 5.8 h |  |
| 2023-11-27 17:00 UTC | [Data Delays for Signals Reports & Metrics API for SparkPost Customers - US Region](https://rewindex.com/company/sparkpost/incidents/kq7dylr6zn64.md) | minor | 8.8 h |  |
| 2023-11-24 17:56 UTC | [Data delays for Signals Reports & Metrics API for SparkPost customers - US region](https://rewindex.com/company/sparkpost/incidents/lqgb7gml4pc5.md) | minor | 7.4 h |  |
| 2023-11-22 15:09 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/2pczldmm5ckf.md) | minor | 2.8 h |  |
| 2023-11-16 15:01 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/bgwnrdncdqwd.md) | minor | 3.4 h |  |
| 2023-10-25 20:55 UTC | [SparkPost Application (webUI): Health Score Data is Delayed (US Region)](https://rewindex.com/company/sparkpost/incidents/9mxvtzsgrv6l.md) | none | 7.9 h |  |
| 2023-09-18 18:09 UTC | [Elevated 5xx Transmissions API error rates and Webhook delays for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/klgyrq74bxfp.md) · [AWS outage](https://rewindex.com/events/2023-09-18-aws) | minor | 16 h |  |
| 2023-09-14 18:04 UTC | [Webhook delays for some SparkPost customers (EU hosted only)](https://rewindex.com/company/sparkpost/incidents/kll2b4lf9whx.md) | minor | 27 min |  |
| 2023-09-13 15:12 UTC | [Outbound message delivery is delayed/slow for some SparkPost customers (US hosted only)](https://rewindex.com/company/sparkpost/incidents/hntc9g6gzv97.md) | minor | 2.4 h |  |


## Charts

### Chart data: SparkPost status incidents per year
Grey: all non-maintenance incidents. Orange: major or critical. Years before Oct 2026 come from the vendor’s own status history.

| Year | Incidents | Major/critical |
| --- | --- | --- |
| 2016 | 28 | 1 |
| 2017 | 53 | 2 |
| 2018 | 48 | 1 |
| 2019 | 33 | 3 |
| 2020 | 47 | 2 |
| 2021 | 57 | 8 |
| 2022 | 36 | 3 |
| 2023 | 26 | 1 |
| 2024 | 36 | 7 |
| 2025 | 29 | 0 |
| 2026 | 23 | 3 |

### Chart data: Incidents per month, last 36 months
By impact as reported by the vendor. Maintenance excluded.

| Month | Impact | Incidents |
| --- | --- | --- |
| 2023-10 | none | 1 |
| 2023-11 | minor | 4 |
| 2023-11 | none | 1 |
| 2023-12 | minor | 1 |
| 2023-12 | none | 2 |
| 2024-01 | minor | 1 |
| 2024-01 | none | 1 |
| 2024-02 | major | 1 |
| 2024-02 | minor | 3 |
| 2024-02 | none | 2 |
| 2024-03 | minor | 2 |
| 2024-04 | minor | 3 |
| 2024-04 | none | 2 |
| 2024-05 | major | 2 |
| 2024-05 | minor | 1 |
| 2024-06 | critical | 1 |
| 2024-06 | minor | 2 |
| 2024-07 | minor | 1 |
| 2024-09 | minor | 2 |
| 2024-09 | none | 1 |
| 2024-10 | major | 1 |
| 2024-10 | minor | 2 |
| 2024-11 | critical | 2 |
| 2024-11 | minor | 4 |
| 2024-11 | none | 1 |
| 2024-12 | minor | 1 |
| 2025-01 | minor | 1 |
| 2025-01 | none | 1 |
| 2025-02 | none | 1 |
| 2025-03 | none | 2 |
| 2025-05 | minor | 4 |
| 2025-07 | minor | 1 |
| 2025-09 | minor | 2 |
| 2025-10 | minor | 2 |
| 2025-10 | none | 1 |
| 2025-11 | minor | 7 |
| 2025-11 | none | 1 |
| 2025-12 | minor | 6 |
| 2026-01 | minor | 1 |
| 2026-01 | none | 2 |
| 2026-02 | major | 1 |
| 2026-02 | minor | 4 |
| 2026-03 | major | 1 |
| 2026-03 | minor | 1 |
| 2026-04 | minor | 1 |
| 2026-05 | minor | 2 |
| 2026-05 | none | 2 |
| 2026-06 | minor | 1 |
| 2026-07 | critical | 1 |
| 2026-08 | minor | 2 |
| 2026-09 | minor | 2 |
| 2026-10 | minor | 2 |

### Chart data: Page snapshot history
One dot per archived version. Grey = first archived (baseline), orange = text changed.

| Date | Page | Change |
| --- | --- | --- |
| 2026-10-19 | Subprocessors | baseline |

---
Canonical: https://rewindex.com/company/sparkpost · Markdown: https://rewindex.com/company/sparkpost.md · JSON: https://rewindex.com/api/v1/companies/sparkpost · Generated 2026-10-19T21:42:41.227Z