New Client Computer Unable to Access POP email

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We are running SBS 2003 SP2 with no Exchange Server. Clients connect to
internet via ISA Server. We use POP3 email hosted by Covad.

When I recently installed a brand new computer on our network, I found that
it was unable to send or receive email via a pop account. I am able to get
email with the exact same account on another client (thereby eliminating the
email account settings in OE as a problem). On the new machine, I am unable
to telnet into the pop3 or smtp servers. I also tried to telnet into gmail's
pop server with no success. Pinging the mail server doesn't work either. I
tried using tracert, and it stopped at 154.11.6.66. Anyway, at this point I
decided it must be a problem with our ISA server, but I can't for the life of
me figure out what's going on. Any ideas?

Keith65
.



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