This morning my server box died (power supply problem
I think).  I've pulled the hard drive and am trying to
set up a similar environment on one of my other boxes.
 I've copied over two user home directories, as well
as exim.conf and dovecot.conf to their proper places,
and restarted the servers.  I think we're getting new
mail in, but I'm not sure where it's going.  Attached
is the results of grep 'Apr 10' /var/log/mail.log . 
AFAIK, nothing is being rejected.  While we're on the
subject, what files do I need to move/replace in order
to make sure that all my users can log onto their
accounts on this alternate box; is it just /etc/passwd
and /etc/shadow, or is there more?