When you are configuring an email account, Thunderbird will often be able to do most of the configuration automatically. However, you will need to manually configure your account if your email provider is not listed in Thunderbird's automatic configuration database, or if you have a non-standard email configuration. This page will show you the basic settings you need to send and receive emails.
For complete instructions to set up an email account manually on Thunderbird go here: http://mzl.la/1BsOvnN