All you need is a non-free e-mail address. Most people use the one their ISP provides, but you can also use a personal domain (as long as you use admin@ or webmaster@) or a school or work address.
But you can't use Hotmail, Yahoo, Gmail or any of those kinds of emails.
____________"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."
Only fools and children dream of heroes.