Simon P. Lucy wrote:
> Yes this true and the more I think about it for those cases it would
> be best to have a helper program which reported back the actual
> Internet IP address. The methods by which it could be accessed and
> reported are many and various, port addresses, NetDDE, http or even
> writing a file in a well known place. For simplicity a http server
> running on its own port might be the simplest for the user as its
> less for them to do.
IMO, in this case, it's better to just offer an SMTP port on the gateway
machine, e.g. a port forwarder or an actual SMTP server.
