help with Exchange 2007 to Exchange 2013

I am currently tranistioning from exchange 2007 to 2013. The install went without any errors  and I want to do the following:

1. My exchange 2007 is currently named exch1.domain.com.

2. My exchange 2013 is currently named exchserv.domain.com.

3. I want to change the name of my exchange 2013 (not server name) to mail.domain.com ( I believe i just need to do this on the virtual directories for ehlo and helo as well as dns internal and external)

4. Since I am not keeping the exch1.domain.com on my new ex 2013 I am thinking i do not need to create a legacy.domain.com.

5. what I think i need to do is create the mail.domain.com A records on both internal and external dns's. I am not sure if this will cause any problems or if i need to be aware of anything.

6. I am unsure as to when I should create the mx record for mail.domain.com during this transition and remove the exch1.domain.com mx record.

Any advice and help would be greatly appreciated.
jerrywalk1Asked:
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Stelian StanNetwork AdministratorCommented:
To change the name on virtual directories: http://blogs.msdn.com/b/mvpawardprogram/archive/2013/03/18/virtual-directories-exchange-2013.aspx

You need to have the MX record in place when you move the mailboxes to exchange 2013
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jerrywalk1Author Commented:
Ok so my thoughts on everything else is correct? I want to transition the mailboxes over 2 weeks. Do I still need to change the mx record before mailbox move or once all mailboxes are moved?
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Stelian StanNetwork AdministratorCommented:
You need to change it before. Other than that you should be good.
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Mohammed TahirMicrosoft Exchange and O365 AdministratorCommented:
If you have changed your domain name @doman.com then you have to contact your ISP and get the new MX record created for new domain and point it to your new Exchange 2013 server.Once Migration completed successfully, down your old exchnage server and ensure everything is fine like mailflow etc. then only remove your old MX record.


Tahir
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jerrywalk1Author Commented:
The domain is the same but mx is currently exch1.domain.com. The new exch2013 is changing to mail.samedomain.com. So if both mx records are to same domain it still works right?
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Mohammed TahirMicrosoft Exchange and O365 AdministratorCommented:
Yes, you can have multiple MX records for same domain.


Tahir
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chris-burnsCommented:
Daft question, but why change the virtual directories?
 can you not just create a CNAME in dns?
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jerrywalk1Author Commented:
If you don't change directories then you risk blacklist for ehlo helo. They wouldn't match up.
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chris-burnsCommented:
Ah ok...

I have never exposed exchange directly to the Internet, it has always gone through a smarthost mailfilter.

Sorry then, not sure how to advise on that scenario.

Chris
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jerrywalk1Author Commented:
Ok...bout to start making the changes and I will report back.
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jerrywalk1Author Commented:
Decided to hold off on this last year. Going to do something different. Closing.
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