If you want to forward a domain that you have to a different domain name or subdomain, the best way to do this would be to use a CNAME record. By setting up such a record, the domain name being redirected loses all its records (A, MX, and so on) and instead, it takes the A record of the domain it is redirected to. In this way, if you are using a web design service by some provider that gives you a subdomain, you can use an actual domain name and not only will it be pointed 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 forward all the visitors 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 setting up a CNAME record for a subdomain because this kind of a record set up for the main domain address renders it impossible to use e-mail addresses.