MS Proxy is fine, but you could do that yourself just as well.  I prefer to
have the IIS SMTP Service that ships with the NT Option Pack relay SMTP
instead of installing the MSP client on the Exchange server.  See the FAQ
Appendix H and Q198415 for more information on this.

Ed Crowley MCSE+Internet MVP
Tech Consultant
Compaq Computer Corporation (soon to be HP)
All your base are belong to us.


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of David Stafford
Sent: Thursday, November 01, 2001 7:19 AM
To: Exchange Discussions
Subject: Exchange and Proxies and ISP's


I have a question on how would be the best way to configure the Exchange
server in the following scenario.  I know there are a lot of opinions but I
have worked on several small implementations where an exchange server was
multi-homed around a proxy/firewall to provide mail service and that has
always worked well but did expose the exchange server to the internet.

I now have a client who has an ISP holding the MX record and points to
their(the ISP) own machine. They are then IP forwarding through MS Proxy(on
the client site) to an exchange server (5.5 sp3) on the other side of the
proxy.  The mail seems to work fine but the ISP is going away and we need to
decide if this is a good configuration to try to maintain with someone else
or should we make a change now since a the ISP change is being forced on
us...?

Any assisance would be greatly appreciated.







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