Up until few days ago, my Ubuntu 10.04 worked like a clock.
Then I switched to Ubuntu 12.10 and things don't work the same way with this setup. First, the new system wasn't logging any mail activity, so I had to edit
/etc/rsyslog.d/50-default.conf and now the mail logs okay.
I am still not happy because the file
/var/log/auth.log is empty and I can't find any information how to enable PAM activity logging.
I must add that even my
/var/log/syslog is also empty!
I wonder what other logs are switched off be default. I am sure some folks with Ubuntu 12.10 went through the same ordeal.