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How do I disable Outlook Web Access autologon?

Posted on 2009-06-30
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Last Modified: 2012-05-07
I have a user that is tying to view his email via webmail on another user's PC without having the other user logoff. The problem is when he goes to webmail it automatically opens the user's mail in webmail who is logged onto the computer.
When he clicks logoff it only gives the option to close the IE window.  I tried getting around this for him by having him change the url from:

https://webmail.umamer.lendlease.com/owa/auth/logoff.aspx?Cmd=logoff 
to
https://webmail.umamer.lendlease.com/owa/auth/logon.aspx?

That url brought up the logon screen but even when he entered in his credetials with domain\username and his password it still opened up the mail of the user that was currently logged onto the computer.

Is IE caching the logon credentials? Is there a certain amoutn of time I need to wait after logging of OWA before logging in with a different account?
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Question by:cyberleo2000
7 Comments
 
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Expert Comment

by:shadowlesss
ID: 24748822
In IIS, Default Website > Right click owa > Properties > Directory Security > Click Auth & Access Control Edit button

What options do you have checked?
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Author Comment

by:cyberleo2000
ID: 24748893
On the client access servers?
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Expert Comment

by:shadowlesss
ID: 24748974
Yes
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LVL 12

Expert Comment

by:Saakar
ID: 24749039
hi,

I guess this should help with regards to your query for timeout on Public Computers

http://support.microsoft.com/kb/830827

- Saakar
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Accepted Solution

by:
ylandrum earned 500 total points
ID: 24749188
Check the internet settings in IE. If OWA is listed in Trusted Sites then IE passes the current user's credentials to the server. Take the OWA site out of Trusted Sites to stop this behavior.
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Expert Comment

by:Mestha
ID: 24749504
Turn on Forms Based authentication. That way they will always get a prompt to login. At the moment pass through authentication is doing its thing. No need to touch the clients if you enable FBA.

Simon.
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Author Comment

by:cyberleo2000
ID: 24754830
I will look into the PC's IE settings. I'll double-check forms based auth. as well, but I don't think that's it because it only happens to some users, not everyone. Thank you for all the comments, thus far.
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