I am in the process of configuring an Exchange 2007 server and all the books and material I have seem to skip over the basics outside of Exchange itself. I have Exchange installed and integrated into AD, etc.
I currently have a domain domain.local for internal use. I need to accept email from www.mail.company.com. How do I go about accepting this outside mail? My Exchange server is part of the domain.local namespace. I think I may be mixing up Active Directory and DNS name spaces. Do I simply change the MX record on the external DNS and have it point to my IP address that is NATed to the Exchange server on my internal network?
Also, what is the best way to test outside mail? We currently use email hosted on the ISP's servers and I need to migrate everything to the internal Exchange server, but I want to test these accounts before going live. I see that I can creat firstname.lastname@example.org email accounts and test them, but I need to test outside email as well.
I noticed I can create AD accounts and email accounts that integrate into AD. Do I need to configure a separate Originization Unit to house the Exchange accounts?
Any help would be greatly appreciated.
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