Ok peps here to story, I have a 2000 server running
exchange 2000. When I set up the domain controller I
follwed the guide lines for hardening a 2000 server and
installed some piece of software or patch from microsoft
to help close of some of the insecurities in IIS.

The problem I have is now that I have installed exchange I
can not telnet to the box on port 25. I have tried telnet
from the box to the local host address (telnet 127.0.0.1
25) and get a 'connection to host lost' message. When I
try to telnet to it from the internet I get a connection
refused message. Now I have checked the firewall config
and have confirmed the NAT rule is working and port 25
does get to the local host.

As far a I can work out this has to be soemthing the
exchange server/2000 server is doing as a result of this
patch.

Has anyone come accross this before? Does anyone have any
suggestions to fix this?

Answers on a postcard please.

On Wed, 7 Jul 2004 04:14:23 -0700, "James" <james.worley@viatel.com>
[quoted text, click to view]

Would help to know the "some piece of software or patch" you
installed. Could be as simple as port 25 being blocked by your ISP,
or in TCP/IP restrictions.