Nearly all e-mail programs use what’s referred to as POP3 (“post office protocol” for those of you into trivia). That allows e-mail programs to find and retrieve Web-based e-mail from Yahoo! and Hotmail accounts.
But some providers charge for the privilege to access your accounts from an email program.
So try YPOPs for Windows and Mac. This small program enables popular email clients like Outlook, Netscape, Eudora, Mozilla, etc., to download e-mail from Yahoo! accounts. Nifty!
