Delete a mailbox domain
Removes a mailbox domain. Refused while the domain still hosts mailboxes, which must be deleted first. The removal is published to the mailbox service, where a publish failure is logged and swallowed, so a 200 does not guarantee the domain is gone downstream. Requires the mailboxes:write scope.
Authorizations
An organization API key, prefixed bk_live_. Takes precedence over Authorization when both are sent. The key is bound to one organization, and the scopes it was issued with are enforced per endpoint.
Headers
Required when authenticating with an access token. Optional with an API key, whose own organization binding is authoritative; a value contradicting it is refused with 403.