# Customer.io: Some US customers may experience delays in message sending

> Customer.io status incident “Some US customers may experience delays in message sending” on 2026-09-19: impact minor (vendor’s label), 0 min, 4 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm
Last updated: 2026-09-19T23:17:59Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-09-19 23:17 UTC · Resolved: 2026-09-19 23:17 UTC · Duration: 0 min
- Updates: 4 · Affected components: Message Sending
- [Vendor status page: https://status.customerio.com/incidents/lhl2rp8zqqlm](https://status.customerio.com/incidents/lhl2rp8zqqlm)
- [Company: Customer.io](https://rewindex.com/company/customer-io.md)

## Timeline of updates

- **investigating** 2026-09-19 22:50 UTC: We are currently investigating this issue.
- **identified** 2026-09-19 22:52 UTC: The issue has been identified and a fix is being implemented.
- **monitoring** 2026-09-19 23:10 UTC: A fix has been implemented and we are monitoring the results.
- **resolved** 2026-09-19 23:17 UTC: This incident has been resolved.

## Cite this

Status incident (vendor impact label: minor) posted by Customer.io, started 2026-09-19 23:17 UTC, resolved after 0 min, 4 update(s).

- Canonical URL: https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm
- Citation: Customer.io, “Some US customers may experience delays in message sending” (2026-09-19 23:17 UTC). Archived by Rewindex: https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm (CC BY 4.0).
- Markdown link: `[Customer.io: Some US customers may experience delays in message sending (2026-09-19)](https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm)`


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Canonical: https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm · Markdown: https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm.md · JSON: https://rewindex.com/api/v1/companies/customer-io/incidents/lhl2rp8zqqlm · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:10:09.546Z