I created a site with Prestashop 1.6.1.18.
Everything was working well until I found out that it started to send a lot of emails from the webmaster email to the unknown email address '[email protected]', which is not in the client list.
I don't know what the emails content is, but I imagine it's some sort of spam.
I installed a captcha module. Then I disabled the emails by going to 'Advance Parameters' > 'E-mail' > 'Never send emails (may be useful for testing purposes)'. I even tried deactivating the email server from the hosting panel. None of the solutions worked.
I don't know how to stop the site from sending those emails.