This is evolving to a subject better discussed at the forums by the way, as this seems to be a misconfiguration in the "stacklet".
The hostname is kept by the kernel in /proc/sys/kernel/hostname. In your case, it is "ubuntu". What hostname -f does, is the equivalent of running getent hosts `hostname` | awk '{print $2}' on the command line. If that command doesn't work, "hostname -f" won't work either. Please attach your /etc/resolv.conf, /etc/nsswitch.conf and /etc/hosts so I can see what's wrong with the NSS resolver on your system. Cheers, Antonio -- Dovecot-common Install Error https://bugs.launchpad.net/bugs/611226 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dovecot in ubuntu. -- 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