What is the output of ls -l /etc/aliases What happens if you run newaliases manually. sudo newaliases
I see from the dpkg log that you have a lot of software from 3rd party repositories installed. Is there any of it that might have modified your aliases file? ** Changed in: postfix (Ubuntu) Status: New => Incomplete -- package postfix None [modified: /var/lib/dpkg/info/postfix.list] failed to install/upgrade: subprocess post-installation script returned error exit status 1 https://bugs.launchpad.net/bugs/248310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs