Sometimes You get email packages combined with your hosting account. These are mostly forwarding emails.

To add a forwarding mail login into your hosting account and go to ‘My Products’ following window will appear :

My Account mya.secureserver.net

Click on manage button, following window will appear:

Workspace Control Center wcc.secureserver.net

Click on ‘Create Forward’ button following pop-up window will appear, set fields and click on create button :

Forward this email address : email@YourNewDomain.com

To these email addresses: email@YourExistingEmailAccount(s).com

Workspace Control Center wcc.secureserv000er.net

With this option you can only receive emails for your new domain name (as they’ll be forwarded to your existing email accounts). If you want to manage your new email ids and want to be able to have separate mail system for it (send/receive/manage), then you’ll need to buy a hosted email package.
Get options for hosted email plans HERE.