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DNS, Domain controller, Exchange server 2003

Wondering if someone can help me out with my current situation. We have a department that moved to a new location I just found out that they had their own DNS and Exchange mail server. When they moved we ordered some bonded T1's for a direct connection to the new office so it is like they are on our network. The whole IP address scheme has changed I've already changed the IP address on the server. The Domain Controller and exchange are running on the same server. This is not a clustered setup.  I could just use the DC for DNS and dhcp but the problem is the only way to the internet is through the bonded T1's then out our firewall. So is it just best to setup DHCP and point to our dns server and add entries for their domain on our DC along with an MX record for their email server? Any suggestions and pointers on how to get this done would be greatly appreciated.
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jwil320
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jwil320
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Jason WatkinsIT Project LeaderCommented:
Is everyone on the same domain? If not, you can create a conditional forwarder on your main DC, to the moved DC's domain.
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jwil320Author Commented:
No this would be 2 separate domains. Can you post some info on conditional forwarders?
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jwil320Author Commented:
Ok, I found info on conditional forwarders. I've added the other domain but I get an error that states The server with this IP address is not authoritative for the required zone.
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jwil320Author Commented:
I figured it out. Forgot that DHCP was assigning the other dns server.
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Jason WatkinsIT Project LeaderCommented:
Are you sure you set up a conditional forwarder and not a stub zone? Is it stated that the forwarding server's IP is not aurhoritative? It is not supposed to be. Perhaps you can create a zone delegation for the forwarding server. Shouldn't have to do this, though.
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jwil320Author Commented:
Everything is working now. Thanks for your help.
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