f21 - dead.letter

[Robert Moskowitz]

I just noticed that I am getting my logwatch email dropped off as 
dead.letter under /root.

And that my personal cron rsync is also coming as dead.letter under 
/home/rgm/

It seems that postfix is not running by default:

# systemctl status postfix
   postfix.service - Postfix Mail Transport Agent
    Loaded: loaded (/usr/lib/systemd/system/postfix.service; disabled)
    Active: inactive (dead)

so I enabled and started postfix.

Is that what I need to do, and all I need to do?

I would like things to work tonight when cronie kicks off its jobs.