Hi,
Could you try sending email using simple php mail function to know emails are going from server.
For example as follows
<?php mail('[email protected]', 'the subject', 'the message', null, '[email protected]'); ?>
In case emails are not going you can contact your hosting provider.
PrestaShop Tutorials Videos [How to do Tasks]
https://www.prestashop.com/forums/topic/907438-prestashop-tutorials-videos-how-to-do-tasks/