Magento 1.9.2 order confirmation email is not sent

ADD

php -f /home/yourname/public_html/domain/cron.php at Cpanel

 put this line at my CRON.PHP file  ...  AROUND LINE 47..  after  this line

$isShellDisabled = (stripos(PHP_OS, 'win') === false) ? $isShellDisabled : true;



CODE:

$isShellDisabled = is_array($disabledFuncs) ? in_array('shell_exec', $disabledFuncs) : true;
$isShellDisabled = (stripos(PHP_OS, 'win') === false) ? $isShellDisabled : true;

/* MODIFICACION */
$isShellDisabled = true;        /* <!-------  this line!!! */