After upgrade my cron script does not find the command /usr/sbin/ssmtp

I have several raspberries running the same cron script but after updating/upgrading jessie on one of them i get ssmtp:: command not found I can run that command from the command-line but running the script from the command-line fails so not really a cron problem. I am using full path: /usr/sbin/ssmtp And using that command on the command line executes fine echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/games:/usr/games And here is snip of the script code #!/bin/bash set -o pipefail mysendmail="/usr/sbin/ssmtp" … $(echo -e "To: $tophil\nSubject: $(hostname) $ip2" | $mysendmail $tophil 2>&1)