Yes, I have only one version of PHP "5.6.20"In syslog cames every 5 min this line:Jul 28 11 ******* CRON: (root) CMD (www-data /usr/bin/php /var/www/html/osticket/api/cron.php)Jul 28 11 ******* CRON: (root) CMD (www-data /usr/bin/php /var/www/html/osticket/api/cron.php)But the mails will not be sent//