If you want to point a domain address that you have to another domain name or subdomain, the best way to do that would be to use a CNAME record. By creating such a record, the domain address being forwarded loses all of its records (A, MX, and so on) and instead, it takes the A record of the domain it's pointed to. By doing this, if you are using a web design service by some company that gives you a subdomain, you can use an actual domain and not only will it be forwarded to the website that you've set up, but it will also appear in the Internet browser address bar at all times. Some other possible uses of a CNAME record are to direct all the targeted traffic from various subdomains to their main Internet domain, or to use the webmail service of your hosting company by using webmail.your-doman.com, for instance. The latter will work only by setting up a CNAME record for a subdomain due to the fact that this kind of a record created for the main domain renders it impossible to use e-mail addresses.