rewindex

CompaniesCustomer.ioIncidents

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

MinorStatus: resolvedStarted Resolved (0 min)4 updatesstatus.customerio.com (opens in new tab)

Affected components: Message Sending

Timeline of updates

  1. investigating

    We are currently investigating this issue.

  2. identified

    The issue has been identified and a fix is being implemented.

  3. monitoring

    A fix has been implemented and we are monitoring the results.

  4. resolved

    This incident has been resolved.

Archive proof

Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.

How the archive is checked, and what it cannot prove.

Impact, status and times are the vendor’s own, as last archived. View on status.customerio.com (opens in new tab).

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).

Title
Some US customers may experience delays in message sending
Vendor
Customer.io
Date
URL
https://rewindex.com/company/customer-io/incidents/lhl2rp8zqqlm

Customer.io profileRecent Customer.io incidentsAll outages on September 19, 2026Customer.io in September 2026MarkdownJSON