Customer.io: Customers are Unable to add new Email Sending Domains
Affected components: Management Interface
Timeline of updates
- investigating
We are currently investigating this issue.
- identified
We have identified the issue and are working to resolve the matter.
- resolved
This incident has been resolved.
Changes Rewindex caught on this incident
- Major incident: Customers are Unable to add new Email Sending Domains
- Incident updated: Customers are Unable to add new Email Sending Domains
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.
How the archive is checked, and what it cannot prove.
Rewindex captured this after the last checkpoint; the next run () commits it.
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: major) posted by Customer.io, started 2026-11-07 00:03 UTC, resolved after 21 min, 3 update(s); edited after publishing.
- Title
- Customers are Unable to add new Email Sending Domains
- Vendor
- Customer.io
- Date
- URL
- https://rewindex.com/company/customer-io/incidents/18mtgfdc6n5b
Customer.io profileRecent Customer.io incidentsAll outages on November 7, 2026Customer.io in November 2026MarkdownJSON