Thank you for taking the time to report this bug and helping to make Ubuntu better.
This looks like a local configuration problem, rather than a bug in Ubuntu, so I'm marking this bug as Invalid. Specifically, your system hostname/domain name are invalid, causing the postfix maintainer script to fail. You can find pointers to get help for this sort of problem here: http://www.ubuntu.com/support/community If you believe that this is really a bug, then you may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem, and then change the bug status back to New. ** Changed in: postfix (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1074540 Title: package postfix 2.9.3-2~12.04.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 75 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/1074540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs