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Unroutable Mail Domain Error
The "unroutable mail domain" error means the server cannot determine where to deliver email for a particular domain. This typically happens when DNS or email routing is misconfigured.
Common Causes
- Missing MX records: The domain has no MX records in DNS. Check cPanel > Zone Editor and verify MX records exist for the domain.
- Email routing set incorrectly: In cPanel > Email Routing, the domain may be set to "Remote" when it should be "Local" (or vice versa). Set it to "Local" if our server handles email, or "Remote" if an external provider like Google Workspace handles it.
- Domain not added to the server: If the domain is not configured as the primary, addon, or alias domain on the account, the mail system does not know it exists.
If you are unsure which setting is correct, contact support with the domain name and we will fix the routing.
