Try the following command on the domino server console:
trace <some.internet.mail domain> in e.g. trace netscape.net and see the result. If it can't find a route, try another well known domain, like yahoo, ibm and so on. If all fails, then there is 2 main potential solutions to look into - first:
- DNS settings are not correct or can not resolve MX records through the Domino server...
- There could be a port blocking outbound on port 25 through the firewall. The latter can be checked using a telnet session on port 25 to any knowned SMTP host. Most SMTP host replies with some kind of text in return...
TrooDOS