Yes. Visit the email video tutorials to learn more.
Note however that some clients have reported problems forwarding to Yahoo! Our servers forward to all provides in the same standard fashion. Most providers accept forwarded emails without any trouble.

You can manage your emails using cPanel, the control panel that comes with the account. Visit the video tutorials.

Yes. CPanel will allow you to add and manage unlimited email accounts. You also have free auto responders, spam assassin, mail forwards, email aliases and catch alls.