In the Connect to Window press the Cancel button. Click on the Mail menu item. Then click on the Options submenu. Click on the Server tab. In the box behind Name type in the name you want to go by.
Most people use their real first and last names.
Press the Tab key twice to move to the E-Mail Address window. Type in your unique address on the Internet. Type in your E-mail password. Click on the Connection tab. If the circle next to I use a modem to access my e-mail is not checked, please click on it with the mouse.