>incomming mail server: pop.mail.yahoo
>outgoing mail server: smtp.mail.yahoo.com
>username: yourusername@yahoo.com
>...outgoing server requires authentication
>incommig server port:995
>...requires SSL
>outgoing server port: 465
>..uses SSL type of encrypted connection
>
>...been working for me for years.

It doesn't work with new free accounts.