使用POP3果然要收費，一年租金：19.99美元，底下是他們的說明：
Hello
You recently attempted to retrieve your Yahoo! Mail messages using a POP3 client such as Outlook Express. Yahoo! Mail no longer provides free POP3 Access or Auto Mail Forwarding to Yahoo! Delivers subscribers.
If you would like to continue using Mail Forwarding or POP3 Access, please sign up for our improved package that allows you to:
Use Outlook, Eudora, or another POP3 client to access and manage your Yahoo! Mail.
Automatically forward your Yahoo! Mail to another email account -- even another Yahoo! address.
Send larger attachments, now up to 5MB instead of the free 1.5MB limit.
Send email without the Yahoo! promotional text at the bottom.*
Sign up now
Of course, you will still have free access to your Yahoo! Mail messages on the web at
http://mail.yahoo.com.
If you have just subscribed to this service, please disregard this notification.
Sincerely,
Yahoo! Mail
For further information, please read our frequently asked questions. Please note that your Yahoo! Delivers settings will not be affected.
*Applies only to email sent through the Yahoo! SMTP servers.