Hi John, Thank you for taking the time to report this bug and trying to make Ubuntu better.
It appears that postfix thinks that your hostname is '04' and it doesn't like that. Can you send the result of 'hostname --fqdn' and 'cat /etc/hostname, and make sure everything is configured accordingly,. and/or manually edit /etc/postfix/main.cf or /etc/mailname to correctly reflect your hostname. Marking this bug as incomplete until further information is provided. Thank you again! ** Changed in: postfix (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755755 Title: package postfix 2.8.2-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 75 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs