fatal: file /etc/postfix/main.cf: parameter mydomain: bad parameter value: 192.168.1.1
The error message pretty much tells the story. you have set your hostname to "thinkubuntu.192.168.1.1", which is not a valid name. lamont ** Changed in: postfix (Ubuntu) Status: New => Invalid -- package postfix 2.5.5-1.1 failed to install/upgrade: subprocess post-installation script returned error exit status 75 https://bugs.launchpad.net/bugs/418117 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