I am having trouble configuring /etc/hosts properly on my Fedora Core 3 system.
Let's say my box is called abc
From what I have read, this line is indespensible:
127.0.0.1 abc localhost.localdomain localhost
However, is is possible to modify this so that messages sent using mail on the command line don't have firstname.lastname@example.org
ldomain as sender? I would prefer either the domain of my isp, demon.net, or my own domain, which is not hosted on my pc but at my web hosting service.