Does Exch allow basic auth? What does the second auth look like; FBA, Basic, Integrated, Digest? From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of William Holmes Sent: Wednesday, April 18, 2007 8:33 PM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Publishing Exchange 2007 OWA with ISA 2006 Authentication Requested Twice Hello, I have published Exchange 2007 OWA with my ISA 2006 Server. Each time I connect I have to authenticate twice? The ISA web listener is configured to use HTML Form Authentication with Windows Active Directory. The application Settings in the publishing rule uses the customized HTML form for exchange. Authentication delegation is Basic. Any ideas why the auth is happening twice? The second one allows access. I am sure I just missed something. Can anyone help me out? Thanks Bill All mail to and from this domain is GFI-scanned.