For a long time, Yahoo allowed POP access only for Premium accounts, so people used custom applications, like Y!Pops to have this feature. This is not longer the case. To enable the POP3 access for your free yahoo mail account, all you have to change is the preferred content, setting it to Asia.
Select Options->Mail Options, then Account, followed by “Add or edit an account”.
Select, the Accounts link on the left of the windows that opens. From the window that opens, select “Account Information” on the left. Then, set: Preferred Content: Yahoo Asia, by clicking on the Edit link, like in this screenshot:
Logout and login.
Then, you can enable POP access and change settings, by clicking, from the mail inbox:
Options -> Mail Options -> POP & Forwarding
Update: A commenter suggested that, if you cannot find the POP & Forwarding option you should try this direct link: http://popfwd.mail.yahoo.com/pf/PopFwd?.done=http://in.f951.mail.yahoo.com/ym/Options&rand=1255761663 . If it does not work, then replace the part after the “done=” with the server address from the url you see when you go to the Options screen from your own Yahoo Mail account.
Now you can read your mail from any POP client; I use Gmail Fetcher to read mail in Gmail and it has all the settings I need already in it.