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OWA Redirecting to Internal Server Name

Posted on 2009-04-07
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Last Modified: 2012-05-06
For some reason, when accessing our OWA site through our external DNS https://webmail.domain.com/exchange it gets redirected to https://server.domain.local.  Internally and externally produces the same results even though I created an A record for webmail.domain.com.

What really baffles me though is that OWA still works externally, even though the internal server name is displayed in the address bar.  The biggest problem however is since the incorrect address is being shown we're getting a certificate error.

Any ideas what this could be?

Thanks in advance
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Question by:paintb4707
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Expert Comment

by:Mestha
ID: 24089376
Sounds like some kind of redirection has been set, possibly to enforce the use of SSL.
Has it ever worked correctly?

Simon.
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Author Comment

by:paintb4707
ID: 24089660
Yes, it has.  I had to go through some PCI compliance crap recently, I wonder if this has anything to do with it?

http://support.microsoft.com/kb/834141
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Expert Comment

by:Mestha
ID: 24089697
What I was think of was this:
http://support.microsoft.com/kb/839357

The simple way to avoid the problem is to simply not open port 80 on the firewall. Make the users enter the https: version of the URL. After a few days of getting the error they will soon learn.

Simon.
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Author Comment

by:paintb4707
ID: 24089731
I do force HTTPS on our OWA server, since we're behind NAT and we also have a webserver, http is not an option externally.  I figured setting a redirection would be a waste of effort.
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Mestha earned 350 total points
ID: 24089787
The only reason Exchange directs to the server's internal FQDN is when you have multiple Exchange servers and you login to the wrong one. It then redirects you to the correct one. If you only have a single server then that shouldn't be happening.

If you undo the change that you made above and then run IISRESET does that resolve the problem?

Simon.
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Author Closing Comment

by:paintb4707
ID: 31567628
Yup, that was it.  Silly me.  I originally set the "Usehostname" command which I guess set it to the internal FQDN.  I used the "Sethostname" command to our external address and that fixed it.

Thanks
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