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// add this to bottom of cron.php
// then when email notifcation sends of cron will incude info

try {
    Mage::getConfig()->init()->loadEventObservers('crontab');
    Mage::app()->addEventArea('crontab');
    Mage::dispatchEvent('default');

$log = fopen(__FILE__.'.log', 'a');
fwrite($log, date("Y-m-d H:i:s").PHP_EOL);
fclose($log);
} catch (Exception $e) {
    Mage::printException($e);
}