how to add a second domain to a single sbs2003 server

we have a single windows 2003 sbs and are using exchange. Our ISP is hosting 2 of our domain names, and we have exchange working great with our main domain. However, we would like to receive e-mail from both domains. How do we add the second domain name to exchange so that mail is not bounced back to the sender.
We are using smtp, and both domains pass off mail to the same static IP address.
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1) On your SBS Exchange server open the Exchange System Manager.
2) Go to Recipients-> Recipient Policies
3) Open the Properties of the Default Policy
4) Click on the Email Addresses tab
5) Enter the second domain for which you would like Exchange to receive email

Make sure you also setup all of your DNS records.

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nigelbeatsonAuthor Commented:
that was great right up to the last line. i am familiar with dns, but am a little uncertain as to how i need to modify them. could you expand on that a little? many thanks.
I'm sorry.  I was talking about your Public DNS records for the second domain.   Just make sure you create your MX record and A record to point to your Exchange server.
nigelbeatsonAuthor Commented:
great thanks!
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