apex_has_cname

Replies were asked to arrive at the name itself on a subdomain that points at its host with a CNAME.

Status: HTTP 409 · Keys and domains

What happened

Replies were asked to arrive at the name itself on a subdomain that points at its host with a CNAME. A name that is a CNAME can’t receive mail itself. Nothing was changed.

What to do

Keep replies on mail.<name>.

Read more

• apex_has_cname in the error table
• Keys and environments
• Domains (dashboard guide)
• API keys (dashboard guide)
• Changelog: when codes were added or removed