• From: "Morriz" <>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Thu, 14 Nov 2002 09:00:50 -0700

Well if you're able to telnet on the local net and get a response your MSX
server is receiving, when you try to telnet to it from an external
IP address you said you get no response, try putting your PC on the
side of your firewall (connect directly via crossover cable possibly)
it an IP address that is on the appropriate subnet, then try telneting to
the firewall's external address on port 25 and see what you get.  If that
isn't possible you can also change your firewall IP address to be on a 
different Private IP address ( put a machine on the new
network  ( and see if you can access the MSX server by
to the firewall's new address (telnet 25) and see if you get a 
proper response.   Your firewall would be your problem if you are still 
unable to access.   I know nothing about your firewall system, but..does
perform only NAT translation or is it setup to perform SMTP proxy
as well.  If it is a SMTP proxy service, you should check that as well. 

You should probably check with your ISP to see if they are blocking SMTP 
services at some point as well before you spend to much time trying to
out what's wrong with your configuration. 


Hi and thanks for the help effort.

Ill will try to connect the server directly to the ISP to se if this work.
Ift not,then it is possible that the ISP is blocking port 25 for personal
server use.

Ill will try your suggestion to to see if it works.

Thanks again for the effort.

/Morriz - none expert :-))

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