Well, disregarding the design decision, or the RFC, it's basically wrong to use CNAME alongside of other records, especially MX records. Considering most activ

Well, disregarding the design decision, or the RFC, it's basically wrong to use CNAME alongside of other records, especially MX records. Considering most active domains have MX records under the root host name (like example.com.), CNAMEs won't work for these hostnames. If there's native implementation for an "ALIAS" record which only points to the corresponding A record of the target, then it will work anywhere.