To setup an email system go to Administration -> Setup -> Email.
On this page you have the ability to create any number of email accounts, but only one account can be active at any time. For example a Bigpond email account may be set up and an Optus account each entered as a 'New Email Settings'.
Alternatively an email system may be changed using the 'Edit Email Settings' button and selecting an 'Edit ID' from the drop down list.
It is not possible to delete an email setting, however it can be made inactive by checking the provided check box.
To setup an email account complete the form and click 'Save Email Settings'.
Note: The SMP Server Port number can be obtained by contacting your provider, but a common port number is 587.
Alternatively google "[your service provider name] server port numbers"