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Customer.io logo and current status indicator

Customer.io Incident History

Operational

customer.io ↗7 components

checked Sep 11, 2026 10:58 AM UTC · Customer.io's official status page

Customer.io is up and running.

Customer.io is currently operational with all systems functioning normally.

All components operational

Email only. No password. No card.
Customer.io status

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Statusfield watches Customer.io alongside the rest of your stack and tells you when its status changes. Email, Slack, Microsoft Teams, PagerDuty, and webhooks.

Email only. No password. Free.

Customer.io incident history

2 reports published by Customer.io in the last 30 days

When Customer.io breaks, it is typically resolved in 1h 2m — median across 11 resolved incidents over 90 days.

September 4, 2026

Reduced Deliverability to Microsoft-Hosted Email Addresses

Last update

  1. resolvedSep 4 · 13:35 UTC

    Microsoft has resolved the underlying issue, we are seeing deliveries to their services resume as normal. Earlier bounces will be retried accordingly. We appreciate your understanding and please do reach out to support if you need any further assistance.

Reported by Customer.io on their status page.

September 3, 2026

Investigating issues with the Agent

Last update

  1. resolvedSep 3 · 17:34 UTC

    This incident has been resolved.

Reported by Customer.io on their status page.