1. You must first change you password in the OS X System Preference Account Pane.
2. Select PREFERENCES… from the MAIL menu.
   
   
   
3. In the ACCOUNTS window, click on the HICKSVILLE account.
   
   
   
4. Type your new password in the PASSWORD field.
   
   
5. You must then click on the SERVER SETTINGS… button and type your password in the SMTP SERVER OPTIONS window.