PrestaShop Contact Form not sending mails to admin

[gaiuspahk]

I can't get the Prestashop contact form to send customers messages to the admin e-mail and I'm running out of ideas.

✅ SMTP and IMAP configuration should be correct in Presta BO.
✅ Required boxes have been checked in the Contact Form module.
✅ Theme folder has templates for the mail in both languages.
✅ BO -> Preferences -> E-mail address, shows those e-mails as if they've been sent.
✅ Contact form sends the confirmation mail to the customers e-mail.
✅ Other mails are delivered (account creation, order confirmation etc).

 

Any help / ideas would be greatly appreciated!