Protecting an Exchange server by placing on LAN?

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From: Thundersmash (thundersmash_at_hotmail.com)
Date: 05/13/04 

Date: Thu, 13 May 2004 17:55:19 GMT

Hello,

I'm wondering if there is any way to locate an Exchange server on my
internal network and place some kind of email appliance on our DMZ to
actually send and receive email to the world and to the Exchange server on
my internal network?

Basically, I don't want my Exchange server to be accessible to the world in
any way.

So ..

Internet -> My Email Appliance -> Firewall -> Exchange Server

I envision setting up a dedicated route in the firewall between the email
appliance out on the Internet and my Exchange server behind the firewall on
my local network?

Are there any email appliances that can work with Exchange in this way? It's
my (limited) understanding that Exchange server can't "pop" to another email
server to pull each Exchange users email, so I'm not sure exactly how or if
my plan could be put into action.

Thanks,

Mark

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