Unable to connect to Exchange Server outside of work office

[ZebraFan]

My computer crashed last winter and had to be restored and all software
reinstalled. Ever since, I can connect to the exchange server using Outlook
from behind our companies firewall, but not from outside the office. When I
try to log in, I get error that says Outlook must be online. I turned off
firewalls, pop-up blocker, antivirus, etc. In IE Browser, I listed the
server as a trusted site. Still cannot connect. Whenever I'm out of the
office I must use webmail to check email. Since everything was OK before the
crash, I assume the problem must be in my computer. I'm running a Dell
Studio with Vista Ultimate.

 

[neo [mvp outlook]]

I would ask your corporate support guys if they support an Outlook Anywhere
(a.k.a. RPC over HTTPS) connection to the Exchange server. If the answer is
yes, then they just need to double check your Outlook profile configuration
that it is configured to connect to Exchange using RPC over HTTPS.