Hi Jim.
We (OS2World) discontinued the os2world.net email web access service since it was not very successful with users.
I'm guessing that some os2world.net emails are still working but connecting directly to the POP3 OS2World mail server. - mail.os2world.com port 110.
But you can contact me in private to martin@os2world.com if you need more help with it.
Regards