alternativesalso, ICQ and possibly other chat clients can do this as well, without the need for yet-another-software-tool being installed
- Anymail
http://www.tntsb.com/anymail/- YahooPOPS FREE YahooPOPs! emulates a POP3/SMTP server and enables popular email clients like Netscape, Eudora, Mozilla, IncrediMail, Outlook, Calypso, etc., to download and send emails from Yahoo! accounts.
http://yahoopops.sourceforge.net/