Outage in Customer.io

US infrastructure delays with sending emails

Resolved Minor
November 24, 2025 - Started 6 days ago - Lasted 37 minutes
Official incident page

Incident Report

Our team is aware of an issue with Campaign deliveries and Transactional emails going out. We are currently looking into this.
Components affected
Customer.io Message Sending

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Latest Updates ( sorted recent to last )
RESOLVED 6 days ago - at 11/24/2025 08:51AM

We confirm the incident has been resolved. The system is fully operational.

IDENTIFIED 6 days ago - at 11/24/2025 08:45AM

Transactional queue backlog is process, priority queue is still ongoing

IDENTIFIED 6 days ago - at 11/24/2025 08:38AM

We identified the issue, backlog is processing now

INVESTIGATING 6 days ago - at 11/24/2025 08:15AM

Our team is aware of an issue with Campaign deliveries and Transactional emails going out. We are currently looking into this.

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