Verifying that your site name is unique
Make sure that the first seven characters of your
sitename name are unique.
If your machine is connected directly to a machine with the
same sitename, UUCP
does not allow communication with that machine.
If both your machine and another machine with the
same name are not directly connected, but are on the same
UUCP network, electronic mail may go to the wrong machine.
To check the sitename use the uname(C) command. To change the sitename, see ``Changing the system name'' in the Mail and Messaging Guide.