Customer.io outage, 6 November 2026
Customers are Unable to add new Email Sending Domains
- Started
- Resolved
- 7 Nov 2026, 00:24 UTC (after 31 min)
- Impact
- Major
- Affected
- Management Interface
Is this still happening?
No. Customer.io marked this incident resolved on 7 Nov 2026, 00:24 UTC, 31 min after it began.
Right now: Customer.io reports all systems operational. (as of 13 Nov, 20:53 UTC) Live Customer.io status
At a glance
- Customer.io rated this a major incident (partial outage).
- It was resolved after 31 min. That is shorter than a typical Customer.io incident: the median of the 26 other resolved ones we recorded is 41 min.
- Customer.io had 1 other incident in the 30 days before it.
- 5 earlier incidents look like the same kind of problem (same affected part or wording); the most recent was on 27 Oct 2026.
- Customer.io has not posted a root cause analysis on its status page.
Our summary from the Customer.io incidents we have recorded since 6 May 2026 - how we count.
Last update from Customer.io
This incident has been resolved.
Read the full incident on the official Customer.io status page
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