1. Incoming mail server - pop.mail.yahoo.com.sg
2. Outgoing mail server - smtp.mail.yahoo.com.sg

Advance Setting
1. Secure POP3 login - No
2. SMTP Authen - Yes
3. Smtp user - no
4. Smtp pass - no
5. POP# Port - 110
6. Smtp Port - 25
7. Last two no