Setting up a new account with Thunderbird is easy. All you need to do is provide your user name and password for your email provider and your email address. Thunderbird determines connection details (such as ports, server names, security protocols, etc.) by looking up your email provider in a database that contains connection information for all the major Internet Service Providers (ISPs). After determining the provider of your account (as specified after the "@" symbol in your email address) Thunderbird can usually provide the account details.
For complete instruction to set up an account automatically on Thunderbird go here: http://mzl.la/1BsOvEk