If you want to direct a domain that you have to a different domain or subdomain, one way to do that would be to use a CNAME record. By creating such a record, the domain address being pointed loses all of its records (A, MX, etc) and instead, it takes the A record of the Internet domain it is pointed to. This way, if you are using a web design service by some company that gives you a subdomain, you can use an actual domain name and not only will it be redirected to the Internet site which you have created, but it'll also appear in the browser address bar at all times. Other possible uses of a CNAME record are to point all the targeted traffic from various subdomains to their main Internet domain, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for example. The latter will work only by creating a CNAME record for a subdomain due to the fact that this type of a record created for the main domain makes it impossible to use e-mail addresses.