I would also need to know how to setup a subdomain of an existing domain. That is not the same as explained above. What I want to do is to delegate a subdomain (e.g. test.mydomain.com) of an existing domain I am managing in zoneedit (e.g. mydomain.com) to be able to manage it separately, be able to set up MX records for it etc. I tried creating the subdomain as a new domain (test.mydomain.com) to then create NS records on my existing domain (mydomain.com) to delegate it to whaever Name server the new domain would get, but I get the error that the parent domain exists, which is true and is fine, but it does not let me create the subdomain as a separate domain from the existing one. Would appreciate if someone can provide some guidance on how that is done in ZoneEdit.