I was wondering, if any additional updates have been made regarding this discussion:
The main goal our back-end API needs to achieve, is not to send a verification link to the end-user which just signed up, unless the user has been created both inside the Auth0, as well as inside our application database.
One way to do it would be to have a custom front-end signup page where instead of signing up to the Auth0 directly, our front-end would contact our custom back-end API, which would be responsible for creating the Auth0 user (via Management API), as well as the database user, and then trigger the verification email trasmission (again via Management API).
However, we would like to avoid it, and instead, would like to use the Universal login page provided by Auth0 (of course, customized according to the visual identity of our app), so is there a way to avoid the transmission of the verification link in that sense?
Hopefully I managed to keep my question clear.