On Fri, 21 Oct 2016, Philippe Meunier <[email protected]> wrote: > When cron runs /etc/daily, that script runs df and netstat and the > output is sent by email to root. On my system, emails to root are > forwarded to local user meunier using /root/.forward. The forwarding > itself temporarily creates a lock file in /var/mail:
Try using aliases(5) instead

