I am running a Novell SBS 6.0 Sp4 server with Border Manager 3.6 Sp2a and
sometime yesterday Yahoo's Email site gives an HTTP error 504 Gateway
timeout screen all of a sudden and has not come back. I have an employee
who logged into their account at noon yesterday with no problem but at
5:00pm on it has been giving this error. I restarted the server and
cleared the proxy but it still doesn't work. Other than restarting the
server and clearing the proxy I have not done anything to the server for a
couple of weeks.

MSN email and other web sites are fine.

Any ideas?