Help needed on mail for ix/386

[fritz zaucker]

Hi there,

I tried to install the mail system of ix/386 ver.2.02 and
have some troubles. If I try to send mail I get error messages
complaining about the /usr/lib/aliases file.It says that it
can't alias non-local names (there are only local names in
the file, as far as I understood (it's the file which comes
with the system). Is this problem known? Is it a general sendmail
problem (people here told me I should use another mail system, has
anybody an idea what or where I could get something)).

Sorry if my questions are to silly, but I am a new Unix user.

Thanks for your help
Fritz