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How to set up Mail Relay ?

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Guest_imported

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Jan 1, 1970
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Dear All

I'm new to sendmail running on Linux and know little about Linux commands.

Currently, I have setup an Exchange 5.5 server for both Internal and External Email. Recently, a firewall with 3 NICs is purchased. To further protect the Exchange server, it is recommended to setup a Mail Relay server in DMZ. Also, there is a Proxy 2.0 server in the Internal Network.

What should be done in order to forward the outgoing email from Internal Exchange server ? And, forward only the local domain email to the Exchange Server ? Also, should I make use the Proxy 2.0 server as I read the MS website there are some settings for Exchange 5.5 + Proxy 2.0.

Helpless
Stephen
 
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