Hello,
I do not know if you know the registration page does not properly validate addresses email.
It does not validate the extension so it allows an email address as "my_email@example"
To resolve this problem you must go to the Admin Panel Dolphin then Builders -> Profile Fields -> Emai l-> Advanced -> Check and change the Regex
return (bool) preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]+)$/i', $arg0);
with
return (bool) preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]{2,})(\.[a-z]{2,4})$/i', $arg0);
or simply with PHP filter
return (bool) filter_var($arg0, FILTER_VALIDATE_EMAIL);
Now it will properly validate email address
P.S. It would still BoonEx that fixes this bug.