> Adrian Henderson wrote:
> >
> > IMHO, this is a firewall issue, not IMail....
>
> And I still think so. For proper security, your server should not even
> have an external IP address. ALL email should go out the same route,
> unless your IMail machine is a gateway for another internal email
> server. Otherwise, there is no email to go "in", only "out". IMail sends
> mail out to the router or firewall, and that device determines whether
> the address in internal or external, and which port to send it to. It's
> a router issue, and your mail server has too many interfaces on it.
>
>
Oh my...
It does not have an EXTERNAL IP. The registry hack is like having
pseudo-external IP. The IP on the NT server is still an internal one.
Under TCP/IP properties it is JUST THE INTERNAL ONE. Internal mail comes in
to the firewall on its external port and sends it out to the NT via NAT. My
mail server, as stated in other posts, has ONE NIC. Its all internal. In
such a case, Imail CAN'T send mail unless you do this hack
http://support.ipswitch.com/kb/IM-19981110-DD02.htm
This is a hack per se, not actually allocating an external IP to the NT. It
is not a firewall issue. Changing these IP's in this scenario is screwing up
Imail's domains. Why is the question. Using the virtual IP's seems okay.
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