>Try using MacTCP Watcher (or something similar) to do a traceroute to the >machine(s) that are failing to see if the problem is a routing failure.
Incoming mail, as well as http requests reache the system. So I presume it is not a routing problem.
>Try doing a tracert and a ping from the NT machine to your Mac Server, >if it passes but the above fails maybe you are running a Firewall on >this Server which is refusing your IP.
AFAIK there are no firewalls within the campus.
>Try Telnet'ing to Port 25 on the NT Machine and see if it comes back >with a Welcome message.
I haven't tried it from the board but it does not respond to telnetting from my ISP
>When the Mac talks to the NT machine does it have to go through a router >to reach it? (Are they connected to different Subnets even if they are >physically connected to the same network)
Yes to both. There is a router and they are on different subnets. i.e. my machine is on 194.27.52.70 and the NT is on 193.140.143.6 (I may be wrong about the last digit).
-------------------------------- Greetings from Istanbul, Turkiye Bekir Kemal Ataman ArchiMac BBS Sysop http://www.archimac.marun.edu.tr