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Exchange 2007 OWA published through ISA 2006, have to log in twice problem

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  • Exchange 2007 OWA published through ISA 2006, have to log in twice problem

    I've got an ISA 2006 server in a workgroup in the DMZ. I also have an Exchange 2007 server on the LAN. Using the wizard in ISA and some Microsoft guides I have OWA published through the ISA server.
    The Web Listener is set to "HTML Form Authentication" and to validate client credentials against LDAP server.
    Authentication Delegation in the OWA publishing rule is set to "Basic Authentication".
    From a computer who is not a domain member, when I go to https://mail.mydomain.com/owa I get the ISA form (I can see the change password option).
    I enter user name and password and I get my emails.
    The problem is that when I connect to the https://mail.mydomain.com/owa from a computer who is a “domain member” (happens both when I am in the office and when I connect from outside the office), I get the ISA form, I put in my user name and password, but instead of getting my emails, I get another form looks like Exchange 2007 form because there is no option to change the password there.
    After entering my user name and password the second time I am able to login and get my emails.
    Exchange 2007 is configured to “basic authentication”.
    I don’t understand why I have to log in twice.

    Appreciate any help that I could get.

  • #2
    Re: Exchange 2007 OWA published through ISA 2006, have to log in twice problem

    Just to make sure, did you have a read on this?
    http://www.msexchange.org/tutorials/...rver-2006.html
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

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    • #3
      Re: Exchange 2007 OWA published through ISA 2006, have to log in twice problem

      Yes I did, and it works great, byt only from computer who is not a domain member.

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