Scott,
based on your questions, it seems to me that you have not found the
outbound port settings for the IIS SMTP gateway, that's why you're still
talking about the default port of an SMTP server.
this is one way how an SMTP gateway scenario works in plain English.
(plain, because English is my second language.:)
Configure the INBOUND port of the SMTP gateway service to 25,
Configure the OUTBOUND port of the same gateway service to port number you
pick, for e.g. 1025
Configure your Imail server SMTP port to port 1025
(it only has one port since it is not a gateway)
The result of this configuration will be that the SMTP gateway will receive
all INBOUND messages from the outside world through port 25 and forwards
them to Imail server on port 1025.
Imail server will receive ALL INBOUND messages from the SMTP gateway
AND
all OUTBOUND messages FROM your email user's email client software.
This means, that the SMTP port of your email client software has to be
changed to 1025 unless you want THAT traffic to go through the SMTP gateway
as well.
Adding more gateway type services to the processing of email should have
the same principle:
scenario 1:
->25 SMTP gateway 1025 -> 1025 Imail 1025 <-> email clients
scenario 2:
->25 SMTP gateway 1021 -> 1021 McAfee gateway -> 1025 Imail 1025 <-> local
email clients
(These scenarios are just one working example (very likely not the best
one) I shared them with you as a tool for explanation, not to start new
arguments.)
If you want to have one or more any kind of gateway software running on the
same machine (spam, virus, etc), you might want to consider the fact that
they will share the processing time of the SAME CPU, therefore consider
splitting email related tasks among two machines or more if it's needed.
Now, based on your repeated replies about that you can not find the
location in IIS where you can configure the outbound port, the only reason
I can think of that for some reason your GUI interface including menus and
options are different than what is should be.
Here is a screenshot of my ISS v5.1 interface, hope, this helps:
http://www.pumi.org/geza/IISsmtp.jpg
Geza
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