Hah, I didn't even try it myself. I guess I should :D. It seemed obvious that that would be the fix, but I guess I was wrong!
EDIT: OK, I *did* just try it and it worked. As root:
Code:
# vi /etc/defaults/periodic.conf
# cat /etc/defaults/periodic.conf | grep daily_output=
daily_output="myusername@myemaildomain.com" # user or /file
# /usr/sbin/periodic daily
#
Now wait a few minutes for the periodic script to finish and then you should get an email provided you didn't fat-finger the email address in the conf file. It worked perfectly on my end just now!
Note that the each type of run has it's own setting: "weekly_output", "montlhy_output", "daily_status_security_output".