If you haven't set up an email account in Thunderbird yet, the welcome window will appear. This window gives you the option to set up an existing email address. Enter your name, email address, and password here, and then select Set Up Manually in the lower-left corner. The additional setup options will now open.
If the welcome window does not appear, or if you want to add another existing account, you can navigate to the setup window by selecting File – New – Existing Email Account....
In the setup window, first enter your name,email address, and the password associated with your personal BA number. If you want to avoid having to log in each time, you can save your password. Now click Set up manually.
Figure 1 illustrates the process described above, and the button for manual setup is highlighted.
