Hello, I'm trying to get ISA 2006 set up with Exchange Server. I have two machines (machine 1: ISA 2006 on windows 2003and machine 2: exchange 2003 on windows 2003 PDC with active directory) that are part of the same domain (testlocal.local). What I'm trying to do is publish my exchange owa in ISA. In ISA, I've setup a web listener with the following settings: Networks - > External, Internal, Local Host Connections - > Enable HTTP connections on Port 80 SSO - > Enable Single Sign ON, wich the SSO Domain ".testlocal.local" Authentication -> HTML Form Authentication, using Windows (Active Directory). I then "Publish Exchange Web Client Access" with the following: From - > Anywhere, Internal, Local Host To - > machine2 Listener - > The one I created above Public Name - > machine2.testlocal.local Paths -> /rpc/*, /public/*, 'Exchweb/*, /Exchange/* Application Settings -> Checked Use customized HTML forms instead of the default. Type of the custom HTML form set directory: Exchange Authentication Delegation - > Basic authentication When I go to http://machine1.testlocal.localfrom Machine 1, I get the ISA login formpage. I enter my credentials, but after I click Log on, I get the following error. Error Code: 403 Forbidden. The server denied the specified Uniform Resource Locator (URL). Contact the server administrator. (12202) I know my Exchange server is setup probably becuase I can login normally by going to http://machine2.testlocal.local/exchange/. Can someone help me set up ISA to get this to work? Did I set something up incorrectly in ISA? Any help would be much appreciated. Thanks! -Jason