(Caronte Pcode version 2.0)
Return the MX records, separated by semicolon, for the hostname.
Example.
CS_ADMIN_SCRIPT this = new CS_ADMIN_SCRIPT($_this);
int Main(CAdminRequest pRequest, CAdminResponse pResponse) {
this->Print("Result: " + this->DNS_MX("inrete.com"));
return 0;
}