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Exchange 07 with ISA 06 Password prompt issue

Posted on 2011-04-26
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Last Modified: 2012-05-11
Good evening,

I am having and internal issue with my outlook 2007 clients, they can connect to their mailbox however they are getting prompted for their username/password when they open Outlook.
The interesting thing about this issue is, when I remove my OWA DNS pointer, pointing to my ISA in my DNS which is mail.domain.com it doesn’t prompt them for their password anymore.
I do use mail.domain.com for Outlook Anywhere / OWA and that is the CN of my Cert. We host 8 company domains so I have a UCC with Godaddy and I have it configured as followed.

CN = mail.domain.com
Alt’s =
autodiscover.domain1.com
autodiscover.domain2.com
autodiscover.domain3.com
autodiscover.domain4.com
autodiscover.domain5.com
autodiscover.domain6.com
autodiscover.domain7.com
autodiscover.domain8.com

Now I also added in mail.domain 1-8.com as well in the UCC but I am thinking this is pointless as I have my ISA06 configured to redirect all to mail.domain.com for OWA. So I believe I can remove those from the SSL and free up some room.

I noticed a lot of articles state that you should add your “internal server” however because I manage my internal DNS I have my Client Access Server configured for the same “Internal / External address of mail.domain.com” is this wrong?

My outlook anywhere works perfectly outside of the company and I don’t mind that my laptop users using this feature must enter their password each time. However my internal users shouldn’t be getting prompted for this.
Also the outlook anywhere clients are able to configure them self so this means auto discover must be working.

I am not 100% sure what other information you may need to help me solve this issue but please let me know and I will post whatever maybe needed.

Thank you,

Chris
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Question by:mrcjc951
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4 Comments
 

Author Comment

by:mrcjc951
ID: 35470540
I should also state that when I remove the internal DNS pointer to my "mail.domain.com" my users who use webmail internally cant access it because I removed the pointer however my external users OWA still works flawlessly... I just seems like my outlook clients internally are requesting information from mail.domain.com which I don’t understand when I have them configured to my Exchange mail server of "Exchsrv07.domain.local."
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endital1097 earned 1000 total points
ID: 35474628
your users are being routed thru ISA for Autodiscover and web services which will require basic authentication

your internal DNS for mail.domain.com should point to your CAS server or load balancer

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Author Comment

by:mrcjc951
ID: 35476467
Okay I gave that a try and that does work, but now my users that use internal OWA for our Order Desks etc... Do not get routed to the OWA form login page, it just pops up an authentication window and then takes them directly into their mailbox.

Correct me if I am wrong but, If I go ahead and add my internal Client Access Server on the UCC Cert I should be able to reconfigure the "internal URL" and point my users thru the ISA listener? Or would this bring the Outlook pop up back?

Or is there another way to correct this all together for internal OWA users?

Thanks
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Author Comment

by:mrcjc951
ID: 35476722
I went a head and changed in Internal URL on my CAS to mail.domain2.com and used ISA to point to mail.domain2.com/owa/ then did a my redirection / deny rules to point to this new path, this fixed my OWA interal issue.

Thanks for your help!
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