domain name change

We're looking to change our domain names from ustest.com to abcustest.com.
I want to keep the old domain since all of our computers, servers is already functioning on ustest.com.
I'm thinking of setting up the email to relay the emails from abcustest.com to ustest.com.
Also I would need to reroute the traffic on from abcustest.com to ustest.com for all other functions.

We just want the website and email to reflect the new domain name abcustest.com while everything else stays the same.

Any thoughts or suggestions?

What needs to be change on our hosting side and on my side?
andyl9063Asked:
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becraigCommented:
Is this a re-branding effort but the underlying infrastructure and dns names will remain ?

If so I would simply have cname records point the the current domain name so my clients will access the new dns name with very little change in the background.

The most impacting change would probably be on your web server, changing the ssl cert and binding to the new dns name.
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andyl9063Author Commented:
yes, just rebranding effort.
All infrastructure and dns will remain the same.

We just want the website domain name and email to be change to abcustest.com.

When you said point cname records, you mean point abcustest.com to ustest.com for cname record?
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Will SzymkowskiSenior Solution ArchitectCommented:
So why not just do the following...

Web Server
- Create a new internal DNS zone for abcustest.com
- Add the DNS servers of ustest.com in the name servers list for this Zone
- Create a Host record in the new Zone for abcustest.com for the Web server

Exchange
- Modfy your email address policy making "@abcustest.com" the primary
- Leave your ustest.com addess as a secondary address (so mail will continue to route if someone sends and email the old address)
- Add Accepted domains for both ustest.com and abcustest.com
- Change your external MX record DNS name from ustest.com to abcustest.com

This should be all you need to do.

Thanks


Will.
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becraigCommented:
Spec01 is right simply create a new A record for your website pointing to the same IP your current website is hosted from (You may have some additional work from the web server end to get things working as expect; SSL etc)


As for your mail the steps indicated above are perfect.
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andyl9063Author Commented:
what about when sending email out, how will it reflect the new email domain?
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andyl9063Author Commented:
Anyone?
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CoralonCommented:
Will already covered this part.  :-)

Exchange
- Modfy your email address policy making "@abcustest.com" the primary
- Leave your ustest.com addess as a secondary address (so mail will continue to route if someone sends and email the old address)
- Add Accepted domains for both ustest.com and abcustest.com
- Change your external MX record DNS name from ustest.com to abcustest.com

The only thing I would do differently in this case, is keep the old MX records in place, and add new ones for abcustest.com.

Coralon
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kevinhsiehCommented:
Spec01 covered this. When you change the primary address in the email address policy, the new primary address becomes the new from address for any sent email. Email signatures will need to be manually updated.
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Will SzymkowskiSenior Solution ArchitectCommented:
Why were the points not addressed to me when I already answered the question and the person that got the points copy/pasted what I had said originally.
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CoralonCommented:
Spec01 (Will) should get the points.. I was just pointed out that he had the answer.  

Coralon
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andyl9063Author Commented:
thanks guys, just confuse about the sender's email address, that's all.

Thanks!
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