1. OPEN your Mozilla Thunderbird
  2. CLICK "Email" under the Create new account
  3. On the pop-up window, CLICK "skip this and use my existing email".
  4. INPUT the necessary information needed (Name, Email Address & Password), then CLICK "Continue"
  5. WAIT for a few seconds till the loading process is completed, CHOOSE "POP3 (keep mail on your computer)", then CLICK the "Manual Config".
  6. Make sure that the information is correct, then CLICK "Re-test".
    Note: Incoming Mail Server: mail.yourdomainname (e.g mail.leentechsystems.com) | Port: 110
    Outgoing Mail Server: mail.yourdomainname (e.g mail.leentechsystems.com) | Port: 26
  7. Then CLICK "Done".