Customer.io outage, 19 September 2026

Some US customers may experience delays in message sending

Started
Resolved
19 Sept 2026, 23:17 UTC (after 27 min)
Impact
Minor
Affected
Message Sending

Last update from Customer.io

This incident has been resolved.

19 Sept 2026, 23:17 UTC

Read the full incident on the official Customer.io status page

Is Customer.io down now?

This page is the record of one past incident. For the live status, see Is Customer.io down right now? - it reads the official status page every 2 minutes.

Other Customer.io incidents

  1. Reduced Deliverability to Microsoft-Hosted Email Addresses

  2. Investigating issues with the Agent

  3. Customer.io UI is inaccessible

  4. Delays in processing and UI inaccessible for some customers in the US datacentre

  5. Issues accessing EU accounts

  6. Some EU users are experiencing delays in processing

  7. Some customers are experiencing data processing and message-sending delays

  8. Delays in message sending

All recorded Customer.io incidents