Thunderbird - First Time Setup

For first time setup, Thunderbird will prompt you to setup an account.

First, Thunderbird asks if you are setting up a mail or newsgroup account. Select "Email Account" and click "Next."

You will be prompted to provide your name and email address. The name you provide here will be displayed to recipients of your outbound mail.
Your email address must include "@sctelco.net.au". Click "next" to continue.

You will now be prompted to provide information about the SCTelco.net.au mail servers. 
The type of incoming server is "POP", the incoming mail server is "mail.sctelco.net.au" and the outgoing server is "smtp.sctelco.net.au"
Then click "next" to continue.

You will now need to provide the user name for your incoming mail server. This is simply your SCTelco.net.au email address.
(Example: user@sctelco.net.au). You do not need to provide an "Outgoing User Name". Click "next" to continue.

You now need to name the account. This will be used to quickly identify the email account
By default this will be the email address you provided earlier. Click "next" to continue

You will then be given a screen displaying everything that was entered, make sure that is correct, and then hit finish.