I want to edit hotmail server address like this?

i want ti edit the last part of my thing like the @hotmail.com part but i dont know how?? does anyone know how i can thanks? i wanna change it to @extreme.com. what is that part called again anyways?
I want to edit hotmail server address like this?
The second part after @ is called a domain name. You can not just change it, you have to either own it or someone can offer you an account on that domain (like hotmail or yahoo do).





Extreme.com does not offer any e-mail accounts so you can not have @extreme.com, unless you contact them and ask for an e-mail account.