Step by Step Instructions:

1. Log in to your domain profile (see this page for instructions).
2. Navigate to the Manage Webmail Accounts Section (see this page for instructions).
3. To change an email account from one address to another, you'll first delete the account to change, and then set up a new address as normal.
4. Click Here for instructions to delete an email account.
5. Click Here for instructions on setting up an email address.