Coexistence Ex2010 and Ex2013 OWA problems

Hello

I have Exchange 2010 and installed Exchange 2013 in a coexistence environment. Mail flow is working through ex2010 to ex2013. The problem is when i try to logon to a mailbox that i moved to ex2013.
External name is https://mail.domain.com/owa which is pointing at ex2010. so when i login it should be redirected to ex2013 but i get this message:
"A change in the server configuration prevents temporary access to your account . Close all browser windows and try again in a few minutes. Contact your support department of the problem persists ."

The virtual directory for owa and ecp on ex2010 has
internal: https://servername2010.local/owa
external: https://mail.domain.com/owa

The virtual directory for owa and ecp on ex2013 has
internal: https://servername2013.local/owa
external: https://mail.domain.com/owa

Has this something to do with legacy.domain.com?
tommyrihuIT ConsultantAsked:
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AmitIT ArchitectCommented:
It should be reverse, you should point OWA and other service to 2013 and then move the mailboxes. Exchange 2013 will redirect to 2010.

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it_saigeDeveloperCommented:
Agreed with amit.  Also Exchange 2010 does not require a legacy record.  The connections from the Exchange 2013 server to the Exchange 2010 server will be proxied.  Refer to the following diagram:Capture.JPGhttp://blogs.technet.com/b/exchange/archive/2014/03/12/client-connectivity-in-an-exchange-2013-coexistence-environment.aspx

-saige-
tommyrihuIT ConsultantAuthor Commented:
Thank you booth, i just read that it doesnt need legacy, only 2007 and i found this http://msexchangeguru.com/2013/06/29/import-cert-e2013/ in the comments that its the other way around and now thanks to you have confirmed it, Thank you!
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