WPCOM_VIP_Support_User::action_user_register PHP Méthode

    public function action_user_register($user_id)
    {
        $user = new WP_User($user_id);
        if ($this->is_a8c_email($user->user_email) && $this->user_has_vip_support_role($user->ID)) {
            $this->demote_user_from_vip_support_to($user->ID, WPCOM_VIP_Support_Role::VIP_SUPPORT_INACTIVE_ROLE);
            $this->registering_a11n = true;
            // @TODO Abstract this into an UNVERIFY method
            $this->mark_user_email_unverified($user_id);
            $this->send_verification_email($user_id);
        } else {
            if (self::MSG_BLOCK_UPGRADE_NON_A11N == $this->message_replace) {
                $this->message_replace = self::MSG_BLOCK_NEW_NON_VIP_USER;
            }
        }
    }