ISA 2000 and OWA Issue

  • From: tim S <tim724342@xxxxxxxxx>
  • To: isalist@xxxxxxxxxxxxx
  • Date: Tue, 24 Aug 2004 07:35:21 -0700 (PDT)

I can't seem to figure it out why this happens.  When my users access the OWA 
running on exchange 2003 server from most ISP's, they get the logon window, 
authenticate and access their emails without any trouble.  But from some ISPs 
and if they type  http://mail.company.com/exchange, they immediatly get the 
"Error: Access Denied" error. They don't even get the NT log on box.  Yesterday 
I tried to OWA to my company server from a host behind ISA in some other 
company, I got the same error.  But when I accessed the OWA site from my DSL 
line, it worked fine.  I suspect my OWA server thinks user is actually sending 
the NT challenge/response information when they just type in the url 
http://mail.company.com/exchange.   Is there anyway I can resolve this?    My 
authentication method at /exchange in the IIS6.0 is integrated.  Thanks 

                
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