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Transitional OWA

I am working on transitioning from Exchange 2003 to Exchange 2010.  In looking through most of the walkthroughs it seems that one of the first things I need to do is to setup the client access server and reroute my owa.  Is there anyway for me to do testing without changing my current owa to legacy.whatever.com\owa until I'm ready.  I was hoping to test it internally by IP or internal address and leave the external one alone.   Do changing the OWA and creating certificates for this new site have to be the first step.
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jabbman
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jabbman
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geieeaCommented:
There are a number of ways you can accomplish this. It's best to use a temporary name during testing. OR you can use legacymail.domain.org during testing and then in the exchange2003url on your cas server have the mail.domain.com url. (This way, you can request one single cert w/ several SANs to include both the old and new names.)
When you are ready to go live w/ 2010 client access , flip the IP addresses to these names and then flip these entries on the CAS server(s).

Hope that helps.
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jabbmanAuthor Commented:
If I use a temporary name during testing and say it is not internet facing can I still test functionality and interaction with 2003 without harming the www.whatever.com\exchange connection?

Do you have to have certificates for anything to work correctly.

As far as certificates go, I can just get one of the free 90 day ones for testing purposes I guess.  But in order for the certificate to work it has to have a public external address that can reach it right?


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geieeaCommented:
Yes, you should be able to set up owa 2010 without touching 2003 environment.

You can go without the cert but you'll get a bunch of cert warnings. It's easier to test w/ a cert.

The legacymail.whatever.com and mail.whatever.com is easy though bc you use the same cert and just switch site names (and dns) in the end.
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