John Klingler wrote:
But for things like firewalls and other systems that don't route mail it is standard practice to disable the sendmail daemon and run "sendmail -qf" (?) from a cron job every 15 minutes or so to deliver any local mail.It is need for local mail (like LogWatch) and it is safe to leave running. The default configuration is to only respond to requests from the local host (127.0.0.1).
