It looks like Yahoo's POP3 interface is a paid-for service, despite what they say on the page above.
One option is to use a small program to download your Yahoo mail to your local machine, and read it from there. A couple of popular examples of such software are FetchYahoo and YoSucker. These are both Perl scripts, so will work with any operating system that has a working copy of perl installed.
What seems to me a technically better solution is YPOPs, which functions as an incoming mail server on your local machine, so configuring mail clients to work with it should be easier. YPOPs has pre-compiled verions for Windows, Mac OS, Solaris, and Linux-based systems. If you're lucky, you may find someone has created a package for your GNU/Linux distribution.
Yahoo mail
Try this page on Yahoo's site.
Yahoo Mail Fetch Scripts
It looks like Yahoo's POP3 interface is a paid-for service, despite what they say on the page above.
One option is to use a small program to download your Yahoo mail to your local machine, and read it from there. A couple of popular examples of such software are FetchYahoo and YoSucker. These are both Perl scripts, so will work with any operating system that has a working copy of perl installed.
What seems to me a technically better solution is YPOPs, which functions as an incoming mail server on your local machine, so configuring mail clients to work with it should be easier. YPOPs has pre-compiled verions for Windows, Mac OS, Solaris, and Linux-based systems. If you're lucky, you may find someone has created a package for your GNU/Linux distribution.
All of the above are of course free software.