We have a Windows 2003 standard server with Exchange 2003. The server is only a few months old and as far as I know, we have always had this problem.
If I am on the internal network or vpn'ing in, I can access Outlook Web Mail fine by typing in the
https://192.168.57.2/exchange (internal IP of server).
But if I am trying to access it externally (using
https://externalip/exhange) I can't access it with internet explorer 7. I have tried Firefox 3 and IE 6, and they both seem to be able to access it fine.
If I try using IE7 or IE8 beta externally, the page just times out. Every web browser works fine internally.
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