1. Open Thunderbird, and select 'Account Settings...' from the 'Tools' menu.

2. Select 'Email account,' and click 'Next.'

3. Enter your full name in the 'Your Name:' field. Enter your full SureNet email address (username@surenet.net) in the 'Email Address:' field, and click 'Next.'

4. Select 'POP' as the type of incoming server you are using. Enter 'mail.surenet.net' in the 'Incoming Server' and 'Outgoing Server' fields, and click 'Next.'

5. Enter your SureNet username in the 'Incoming User Name:' field, and click 'Next.'

6. Enter a name for your email account in the 'Account Name:' field, and click 'Next.'

7. Verify that the information listed under 'Congratulations!' is correct, and click 'Finish.'