I have working postfix with gmail account sending emails from system - this is working fine.
I have configured crontab to run "backup" script perodically - this is working fine.
How to configure email notification about this script - the best way is success/failure notification.
Now, I have some configuration done but it not work. My crontab -e:
RegardsCode:MAILTOfirstname.lastname@example.org 20 11 * * * /sap_instalki/backup.sh -q -p --retention=3 > /dev/null 2>&1