Problem is an invalid entry in hostname. You should edit /etc/postfix/main.cf and set a valid hostname entry then, after that reboot postfix. However, this issue is experimented for several users, so marking that as bug because there should be a problem in configuration, setting an invalid hostname there by default.
** Changed in: postfix (Ubuntu) Status: New => Confirmed ** Changed in: postfix (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in Ubuntu. https://bugs.launchpad.net/bugs/797779 Title: package bsd-mailx 8.1.2-0.20100314cvs-1 failed to install/upgrade: προβλήματα εξάρτησης - αφήνεται μη ρυθμισμένο To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/797779/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs