Exchange 2007 to Exchange 2013 migration.

Hi,

I'm having an issue with a migration I have been working on . I would appreciate any help. Here is my scenario.

Old server. SBS 2008 with exchange 2007 8.3
New Server: 2012 standard acting as the DC
New Server: 2012 standard with exchange 2013 installed on it.

I moved one test mailbox to the new database. I then tried to log in to that account via owa and got this error.

No Client Access servers of the appropriate version can be accessed from the Internet.

This morning I started to troubleshoot this error and decided to try to log in one more time and it worked:
https://newexchange/owa. But if I try to log into the old server using https://oldserver/owa I get the error mentioned.

If I send an email from the new server using the test mailbox I get this error.
You don't have permission to perform this action.

Also I can't send an email to that test account from outside or inside the org. I have been following several different step by steps and must have made a wrong turn.

Can anyone point me in a direction?

Thank you
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jclsandiegoAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
This morning I started to troubleshoot this error and decided to try to log in one more time and it worked:
https://newexchange/owa. But if I try to log into the old server using https://oldserver/owa I get the error mentioned

Did you make sure that you updated your URL's correctly when you are going through the migration? You need to make sure that then you are doing this migration that the Exchange 2013 server is the internet facing CAS server. Connections then redirect or proxy to the old environment from the 2013 server.

I would recommend using the Exchange Deployment Assistant and ensure that you have not missed any steps that are required.

Exchange Deployment Assistant
https://technet.microsoft.com/en-us/office/dn756393.aspx

Will.
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hecgomrecCommented:
My experience tells me you did not follow your step by step properly or something was missing on them.

You are not able to receive or send because the server holding the mailbox is not authorized or configure to send messages and of course the mailbox does not exist on the 2007.  Remember, you can always access lower versions but not higher, so your 2013 will open mailboxes on 2007 but your 2007 can't open new mailboxes on 2013.

Right after you finish the installation, you must make your new Exchange 2013 your Main CAS.  How you do this??
Just change your DNS records and firewall to point to the new server IP.  Make sure all external and internal names match your server settings e.g.: mail.domain.com, autodiscover.domain.com, etc.

Here is the step by step I use (is for 2010 to 2013 but it works for 2007 too):

http://www.petenetlive.com/KB/Article/0000788.htm

Good Luck!!!
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jclsandiegoAuthor Commented:
I've requested that this question be deleted for the following reason:

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Will SzymkowskiSenior Solution ArchitectCommented:
Why is this question being closed?

Please provide an explaination.

Will.
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jclsandiegoAuthor Commented:
Sorry guys, I was trying to close the question and had some trouble. I will close it correctly from now on.
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