With MS Proxy 2.0 you can do reverse port proxying.  Reverse Port proxies are set up so that a user on the outside of your network hits IP address X port Y which is really redirected to IP Z port Y on your internal machine.  This requires that the MS Proxy client 2.0 is installed on the machine inside your net (IMAIL box) and that you place a properly configured proxy config file in the same directory as the IMAIL exe's.  You can find a good article on reverse port proxies at support.Microsoft.com find the search engine and look up "reverse ports".  Let me know if you run into trouble and I can send you a sample file from a box at work that is doing something similar on Monday.
-V
----- Original Message -----
Sent: Wednesday, July 21, 1999 7:45 PM
Subject: [IMail Forum] IMail Web Messaging behind Proxy 2

Hi all,
 
I'd like to use IMail as a web email server for my customers.  No POP, just web based.  I would also prefer to keep the IMail server on my internal network, behind MS Proxy 2.0, for some basic level of isolation.  I'm running into trouble with this configuration:
 
I can use Proxy to redirect requests to IMail's start page for web messaging, but after entering a valid username/password, things go downhill.  It appears that IMail redirects to some kind of temporary or virtual directory.  Since I have no way of predicting what this will be, I can't configure Proxy accordingly.  The result is an "HTTP Error 404 Not Found".
 
Is there a way around this, or at least an alternative approach for combining IMail web and a firewall?  Thanx for any help.
 
-- Eran

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