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Exchange 2007 to 2013 migration

I'm migrating Exchange 2007 to Exchange 2013 using http://msexchangeguru.com/2013/05/10/exchange2013-migration/ as a guide. I'm at step 8. I'm trying to get OWA and Active-Sync for the 2007 server to redirect through the 2013 server. When I change the NAT to point to the 2013 server, OWA for a 2013 user works fine, but when I log on as a 2007 user I get a blank page.

I have added legacy to the certificate. I setup an internal DNS for the public domain, pointing mail and autodiscover to the 2013 server, and legacy to the 2007 server.

What am i missing here?

Thanks,

Charles
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cwconley
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cwconley
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1 Solution
 
Simon Butler (Sembee)ConsultantCommented:
Exchange 2007 does not proxy, it only redirects.
Therefore you need to ensure that you have an external URL populated within Exchange 2007 for legacy.example.com.

Simon.
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cwconleyPresidentAuthor Commented:
The external URL https://legacy.example.com is forwarded to to the internal IP address of the 2013 server. The internal DNS points legacy.example.com to the internal IP of the 2007 server.

Is this correct? Wil the 2013 server not  redirect to the 2007 server? Do I need to configure one of the virtual directories on the 2007 server with the external or internal URL of legacy.example.com? If so, which ones?

Thanks.
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Simon Butler (Sembee)ConsultantCommented:
Legacy.example.com should go exclusively to the Exchange 2007 server, both internally and externally. All virtual directories on the Exchange 2007 server should be changed to use the legacy URL for at least internal traffic.
Outlook Anywhere and ActiveSync will be proxy-ed to Exchange 2007 by Exchange 2013 so those can be left without external URLs set.

Simon.
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cwconleyPresidentAuthor Commented:
If I change all the 2007 virtual directories' internal URL to legacy.example.com, will disrupt outlook for the users on the 2007 server? Also when I make these changes will  will the external 2007 OWA users still use https://mail.example.com/owa or will they use https://legacy.example.com.owa?

Thanks.
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Simon Butler (Sembee)ConsultantCommented:
If you change the URL to legacy, but the existing URL still resolves to Exchange 2007, then OWA will "correct" the URL for you.
The idea behind the two URLs is that you point the existing host name at the new platform, then let Exchange sort out whether it is redirected to the new host name or logs in to the mailbox on the new platform.

Simon.
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