# Customer.io: Delays in message sending

> Customer.io status incident “Delays in message sending” on 2026-07-20: impact major (vendor’s label), 0 min, 3 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq
Last updated: 2026-07-20T17:47:24Z

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-07-20 17:47 UTC · Resolved: 2026-07-20 17:47 UTC · Duration: 0 min
- Updates: 3 · Affected components: Message Sending
- [Vendor status page: https://status.customerio.com/incidents/5cgqc0yvj9rq](https://status.customerio.com/incidents/5cgqc0yvj9rq)
- [Company: Customer.io](https://rewindex.com/company/customer-io.md)

## Timeline of updates

- **investigating** 2026-07-20 17:07 UTC: Our team is currently investigating an issue delaying message sending in the US and EU regions
- **monitoring** 2026-07-20 17:41 UTC: A fix has been implemented and we're monitoring the results.
- **resolved** 2026-07-20 17:47 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-07-20 17:47 UTC: [Major incident: Delays in message sending](https://rewindex.com/change/i560c565f41c4ad.md)

## Cite this

Status incident (vendor impact label: major) posted by Customer.io, started 2026-07-20 17:47 UTC, resolved after 0 min, 3 update(s).

- Canonical URL: https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq
- Citation: Customer.io, “Delays in message sending” (2026-07-20 17:47 UTC). Archived by Rewindex: https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq (CC BY 4.0).
- Markdown link: `[Customer.io: Delays in message sending (2026-07-20)](https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq)`


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Canonical: https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq · Markdown: https://rewindex.com/company/customer-io/incidents/5cgqc0yvj9rq.md · JSON: https://rewindex.com/api/v1/companies/customer-io/incidents/5cgqc0yvj9rq · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:12:17.262Z