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Exchange 2010 OWA vs. ActiveSync

Posted on 2013-01-02
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Last Modified: 2013-01-03
I'm reading an installation guide to go from exchange 2003 to 2010 and have some worries.

Currently, all phone users (ActiveSync) and web browser (OWA) go to the same website... http://example.mydomain.com

But it sounds like with 2010, you have to use:
http://example.mydomain.com/owa
and
http://example.mydomain.com/microsoft-server-activeSync

Is that the case? If so, every single remote user and phone user is going to be broken when I upgrade.
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Question by:cajx
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by:
Simon Butler (Sembee) earned 2000 total points
ID: 38738520
You don't have to worry.
You enter host.example.com in to the ActiveSync client, and it will use Microsoft-Server-ActiveSync - you will have that virtual directory on the current server as well.
All on the same web site.

For OWA, you will be currently using host.example.com/exchange (Even if you have a redirect in the root so the users don't have to enter the /exchange bit) that will change to /owa.
Again easily corrected - if you point the existing host name at Exchange 2010 then anyone using /exchange will be redirected to /owa, plus you can put a file in the root so anyone browsing to host.example.com gets directed to host.example.com/owa

Simon.
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Author Comment

by:cajx
ID: 38740145
Simon, thanks so much... that's a relief to hear.
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Author Comment

by:cajx
ID: 38741446
On second thought, is this still doable while keeping the 2003 boxes online for a few weeks while we are migrating to the 2010 boxes? I was planning on running them side by side for a while via this guide:

http://www.msexchangegeek.com/2010/01/30/rapid-transition-guide-from-exchange-2003-to-exchange-2010/

and this coexistence guide:
http://msexchangetips.blogspot.com/2012/04/exchange-2003-migration-to-exchange.html
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LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 38742315
If you want to keep both servers running then you will need to have two URLs and two external IP addresses.
You would then set your existing URL, plus autodiscover to the Exchange 2010 server, and assign a new URL (legacy.example.com) to the Exchange 2003 server. Co-existance is very straight forward. Everyone logs in to Exchange 2010 and gets redirected if their mailbox is on the old platform.

Don't forget to setup an RPC CAS Array before you migrate anyone.

Simon.
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