Using bsdinstall(8) I made a new system but did not configure the network. After booting into the system, local mail was not working and I was unable to root@my-test-mach:~ # ping `hostname` ping: cannot resolv my-test-mach: Host name lookup failure This causes all local mail to fail, /var/spool/mqueue just fills up. periodic scripts therefore don't populate root's mail. Solved by manually adding hostname to /etc/hosts