Exchange 2007 SP3 on Windows 2008 SP2
ISA 2006 SP1 on Windows 2003 SP2
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I have published OWA on the ISA server.
OWA functions perfectly internally (ISA is not involved in internal connections which are made directly with the Exchange CAS).
When I attempt to log into OWA using the same user credentials that function above, but externally, via published OWA, the connection fails and the following message displays:
Error Code: 403 Forbidden. The server denied the specified Uniform Resource
Locator (URL). Contact the server administrator. (12202)
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Authentication settings on the web listener were:
HTML Forms Authentication
Methods - Windows (AD)
Authentication settings on the web listener are now:
HTTP Authentication
Basic checked (only)
Methods - Windows (AD)
Advanced - Require all users to authenticate
No domain name.
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How can I make this work?
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Note: the ISA server is a domain member.
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