If you want to forward a domain name that you have to a different domain name or subdomain, one way to do this would be to use a CNAME record. By creating such a record, the domain name being forwarded loses all of its records (A, MX, etc) and instead, it takes the A record of the domain address it's directed to. In this way, 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 Internet site that you have created, but it will also be displayed in the Internet browser address bar at all times. Alternative possible uses of a CNAME record are to forward all of the visitors from different subdomains to their main domain address, or to use the webmail service of your hosting provider by using webmail.your-doman.com, for example. The latter will work only by creating a CNAME record for a subdomain simply because this kind of a record set up for the main domain address makes it impossible to use e-mail addresses.