Knowing what firewall you are using would help greatly! But you dont *have*
to use internal DNS. What I do is use the firewall to NAT the inside address
of the exchange server to a predefined external address (which is also the
address the MX record points to). Then I open up the correct ports and I am
done. That's oversimplifying it a *little* but you get the idea. WINS
handles the internal name resolution. My firewall has my ISP's DNS entries
and routes accordingly.
The Future is in Beta
> I'd like to setup Exchange behind the firewall. Can anyone point me to a
> URL with some information on how to accomplish this task? IT seems like
> DNS should be installed internally with two entries. The first entry would
> point to the Exchange box, the second pointing to the DNS server of the
> The MX record at the ISP would point to our dynamic IP address which
> be associated with an internal IP address on port 25?
> This is the general setup; any info would be appreciated?