1. Open Thunderbird --> Tools --> Account Settings
2. Add Account --> Email Account [Click Next]
3. Fill out your name and your email ([email protected]) [click Next]
4. (Select POP) Set Incoming Server As 'localhost' [Click Next]
5. Fill In Your Name [Click Next]
6. Enter Account Name (Yahoo Mail,etc..) [Click Next] [Then Click Finish]
Check The Sidebar on Outgoing SMTP server, make sure it is set to
'127.0.0.1' and the username to your yahoo username



