# cat /etc/periodic.conf
daily_output="hoge@hogehoge.com"
daily_status_security_output="hoge@hogehoge.com"
weekly_output="hoge@hogehoge.com"
monthly_output="hoge@hogehoge.com"
送信先を「admin」に変更
# cat /etc/periodic.conf
daily_output="admin"
daily_status_security_output="admin"
weekly_output="admin"
monthly_output="admin"