rob skinner

Our current setup is Exchange 5.5 running on Windows NT 4.0 sp6 behind ISA Server using the IMC.

We will be getting rid of the ISA Server soon and implementing a Cisco Pix firewall. The IT company configuring the firewall for us said that we should put an Exchange SMTP Gateway out in a the DMZ of the firewall and have people sending mail into our company send to the SMTP Gateway which will forward the mail to our internal Exchange Mail Server.

How do I do this and what is required for the SMTP Gateway (Exchange?, etc..)

Thanks for your help.

Rob

john oliver, jr. \(mvp\)

What is their reason for having an SMTP Gateway? Is it Antivirus or Third Party related? I would much prefer to have my Exchange Server behind the PIX Firewall and not in DMZ unless there is some good reason.

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John Oliver, Jr.
MCSE, MCT, CCNA, Exchange MVP

We will be getting rid of the ISA Server soon and implementing a Cisco Pix firewall. The IT company configuring the firewall for us said that we should put an Exchange SMTP Gateway out in a the DMZ of the firewall and have people sending mail into our company send to the SMTP Gateway which will forward the mail to our internal Exchange Mail Server.

How do I do this and what is required for the SMTP Gateway (Exchange?, etc..)

Thanks for your help.

Rob

gene

You do not neeed exchange for a smtp relayer, just get exim, qmail,
sendmail or something else reliable and less hackable than exchange, to relay the mail you want and not
relay the mail you dont want.

They probably want you to put a smtp server in a dmz because it is alot
easier to configure than having to do static translations from internal to
external and vice versa, dns rewrites etc.

or else they are selling you the exchange solution and
want to take you for as much cash as they can.