Bug 231646

Summary: bsdinstall(8) Unable to resolve own hostname, causes local mail to only queue
Product: Base System Reporter: leeb
Component: binAssignee: freebsd-sysinstall (Nobody) <sysinstall>
Status: New ---    
Severity: Affects Only Me Keywords: install
Priority: ---    
Version: 11.2-RELEASE   
Hardware: Any   
OS: Any   

Description leeb 2018-09-23 21:59:25 UTC 
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