I'm currently on step 13, which is: 13 Postfix With SMTP-AUTH And TLS. After configuring postfix/main.cf and trying to restart it, I received the error postfix: fatal: /etc/mailname: unable to open: cannot open file: No such file or directory I figured the next logical step would to do a mkdir /etc/mailname (and it obviously wasn't). I went ahead and made the directory, tried to restart postfix, and then got the error: postfix: fatal: /etc/mailname: unable to open: file has 2 hard links Is there any way for me to solve this problem? Thanks!