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Solutions for changing external email domain name.

We currently have a company who has an email domain of bob.com. Their email is setup to use a pop3 email connector to download the email. They are wanting to change the domain of the email to sue.com. They want to be able to totally change over to sue.com and just have bob.com forward email to sue.com. Of course this means send and receive as sue.com. What are our options of changing the domain over to the new one? Does the exchange tie the bob.com domain to active directory so that you can't change it?
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aando
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aando
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Andres PeralesCommented:
this will not effect your internal AD domain name, you will need to buy the domain sue.com, then update your DNS to add sue.com records that will point to your mail server, these will be your mx records.  
Then on your exchange server update you receipient policy to include sue.com for your mailboxes, if you want this to be your primary smtp address select it as so...then your users will be able to receive email for bob.com and sue.com.
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aandoAuthor Commented:
The thing is they are using the pop3 in small business server exchange. I don't believe it is possible to have two separate pop3 addresses deliver to the same mailbox correct? When you set new email as the primary on the recipient policy, it should send from this address right?
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Andres PeralesCommented:
should not matter, as long as you have sent up the mx records to point to the right server and the rest is setup correctly it will work fine.
that is correct the send address but, if they are using pop then they will have to edit their own personal profiles with the correct email address.
Why are they even using pop3, you should consider the more secure option of RPC over https for your clients.
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aandoAuthor Commented:
Why would mx records matter if they are using the pop3 connector?
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aandoAuthor Commented:
It really is as simple as rerunning CEICW and filling in the new email domain name. We just added the new domain email in the "connect to the internet". I have tested this and all is well :)
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