A client's host and domain registrar, Aruba, tell me I can't delegate a subdomain's DNS management to external namesevers.
The intention was to point the subdomain to a Heroku app and leave the client's main domain name and website as is (hosted on Aruba's nameservers).
Is this normal that a registrar would disallow this? Am i just getting brushed off? I'd like to hear opinion before going back to them, thanks