• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 523
  • Last Modified:

MS EXCHANGE DNS DOMAIN NAME CHANGE COMPANY NAME CHANGE

I have a need for help

The company is changing their name to take effect in December 2011 so I have been tasked to do the following.  Here is the physical network, Domain Server windows 2003 standard Exchange 2007 on top of 2003 standard

Mycompanydomain.com is the network (physical domain controller 2003 standard server) there is also an 2003 standard server with exchange 2007 with 45 users.  one static ip address. 1 firewall cisco asa 5510

I have been asked to change the primary email accounts from mycompanydomain.com to mycompany2domain.com but still maintain mycompanydomain.com (keeping the physical domain unchanged) so I can not purchase any additional hardware.

here is the internal information
company purchased mycompanydomain.com from network solutions and have webservers hosted by rackspace.com and the dns records point to ns.rackspace.com and ns2.rackspace.com for MX and A records

so thinking all I needed to do was purchase a secondary domain and an ssl certificate here is what I have done.

I purchased mycompany2domain.com from godaddy.com

also purchased a 5 multi-domain ssl certificate from godaddy.com

I think all I need to do to change the email addresses is add an additional mx record inside my physical DNS server and point them to the mycompany2domain.com and install the ssl certificate and then modify my hosted rackspace.com CName servers. of course this is all I have any and all help would be greatly appreciated. I am not a email expert yet but working on it,

mycompanydomain.com  (physical domain controller) PHYSICAL 2003 server DNS created mycompany2domain.com added a records and mx records for mycompany2domain.com and added mycompany2domain.com to the smtp exchange 2007 email accounts additional smtp addresses.  Here is what I need to do,

Keep physical network in place as we are not removing the mycompanydoman.com domain but adding an additional mycompany2domain.com (company changing parent company name and keeping sister company as is.


NETWORK SOLUTIONS is vendor for mycompany.com domain my

MX RECORD POINTS TO NS.RACKSPACE.COM and A RECORD  POINTS TO NS.RACKSPACE.COM

PURCHASE SECOND DOMAIN FROM GODADDY.COM

NEED TO ADD SECONDARY SMTP ADDRESSES FOR 43 USERS AND KEEP 10 PRIMARY SMTP ADDRESSES

SMTP ADDRESSES NAME@mycompanydomain.com ADD SMTP ADDRESS NAME@mycompany2domain.com


what else do I need to do to keep the physical network the same but change the primary email accounts to mycompany2domain.com
0
msCCare
Asked:
msCCare
1 Solution
 
PapertripCommented:
company purchased mycompanydomain.com from network solutions and have webservers hosted by rackspace.com and the dns records point to ns.rackspace.com and ns2.rackspace.com for MX and A records
You MX records should point to your incoming mail server(s), and your A record should point to the IP you want mycompanydomain.com to resolve to.  If rackspace is hosting DNS for your domain, then ns.rackspace.com and ns2.rackspace.com should be your NS records only.

You will also need to add your sending IP(s) to the SPF record for the new domain.
0
 
jzaniewskiCommented:
What you need to do is actually fairly simple.
1. Purchase your new domain name from the registrar of your choice.
2. Decide where the public DNS records will be hosted and assign the name servers to the domain at the registrar
3. Create an MX record for the new domain name that points to the same A record of your current domain.
EX: your current MX record should look like mycompanydomain.com MX 10 mail.mycompanydomain.com
      your new MX record should look like mycompany2domain.com MX 10 mail.mycompanydomain.com

NOTE: The same domain in the later part of both MX records

NOTE: You will not need to create a CNAME or an A record for the new domain because you will be using the DNS records of your current domain. Also the static IP for your Exchange server requires a Reverse DNS and you can only have one Reverse DNS record pointed to the public facing IP. This is why you will be pointing your MX record to your current domain instead of your new one.

That's it for the DNS side.

On the Exchange server...
1. Add the new domain to the Accepted Domains under Organization Configuration / Hub Transport
2. If your email mailboxes are configured to  "Automatically update e-mail addresses based on e-mail address policy" all of your mailboxes should get the new domain name automatically.  If not, you will need to assign the domain to each mailbox that needs it.  This can be done through Recipient Configuration / Mailbox and double click on each mail box and go to the E-mail Addresses tab and add the domain.

NOTES:
No changes are necessary on your firewall unless you are running a spam filter or some type of email proxy.
No changes are necessary on your domain controller. Email is not controlled by the Active Directory domain.
You should not need any additional certificates because your certs are based on your server name, not on the domains they host.
If you have cell phones that use ActiveSync, use the same configuration that you used for your current domain, just with the new email address and credentials.
If you use POP3 use the same configuration that you used for your current domain, just with the new email address and credentials.
0

Featured Post

2018 Annual Membership Survey

Here at Experts Exchange, we strive to give members the best experience. Help us improve the site by taking this survey today! (Bonus: Be entered to win a great tech prize for participating!)

Tackle projects and never again get stuck behind a technical roadblock.
Join Now