I'm new to Linux just two days ago..
I installed RedHat8.0 using the three installation CD's.
During the install process I configured it with a private IP address, because it's behind a Cisco Firewall, and have given it a hostname. I also given it the IP addresses of the DNS servers of my ISP. I can surf the net using the Netscape browser.
I'm trying to send mail via the command line to my work email address using the "mail" command.
When I type "mailq", I see my request. However, I see "service unavailable".
What does that mean? How can I fix it?