Thanks for the clarification, Scott
----- Original Message -----
From: "Scott Perry" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 28, 2001 6:29 PM
Subject: Re: [IMail Forum] Win2K IIS Default SMTP server
> > However, I'm still quite confused about setting the output TCP port.
> > Only one port number can be designated in the setup (not a range,
> > such as all port over 1025).
>
> Don't worry about that; just set it to 25. That technically isn't the
output port; MS will pick that one automatically from a 1025->65535 range.
The "output TCP port" they are looking for is really the "remote TCP port",
which is the one IMail is listening on (25).
>
> MS will listen on port 25, where other machines will connect to it using
an ephemeral port (one of the 1025->65535 range). Later, MS will send (on
an ephemeral port) to IMail (on port 25). Each TCP/IP connection uses an
ephemeral port on the client side, which connects to a known port (IE 25 for
SMTP) on the server side. On the server side, it actually gets switched
around, but that's a story for another day.
>
>
> --
> -Scott
>
> Declude: Anti-virus and Anti-spam solutions for IMail.
http://www.declude.com
> --
>
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