Ojs sheduled task log

Hi sir, i installed ojs very well, i changed the email settings (SMPT on) and i entered gmail settings in configphp but recently i realized that there were nearly ten email at my email inbox, they were coming from my ojs site, they were about scheduled task log, why do these mails come? Can i fix it?

thanks for any advise

These messages give you information about the routine tasks automatically run by OJS behind the scenes.

It is often helpful to see these emails only if there is an error in the task processing. You can configure this in config.inc.php: