user can add an email address when registering?

bit of a random question, it must be able to be done but for the life of me I can not find a solution.

So you can go into cpanel and add an email address

what kinda code do I need so that a user can go onto my site and add a free email address?

Preferably I want to let people obtain on starting a new blog? I want to do this for a few reasons

1) http://www.shopezy.co.nz would be able to give clients an email address for their ecommerce site
2) I just set up acv.co.nz and I want to give free online CVs to people and an email address

but I don't want them both contacting me to do it :slight_smile: