In your website Control Panel you can set it up so that a new email address you've made gets redirected or Forwarded to a Bigpond or Yahoo or Gmail, etc. address:
1. Log into your website control panel (see FAQ question on the Control Panel).
2. Look for an icon in there that says Forwarders.
3. Click on the icon and fill in all the details and follow the straight forward prompts you will see.
4. Save the settings and you're done.