function send_email($from_email)
 {
     if (empty($this->user_email)) {
         return true;
     }
     $subject = '[' . $this->site_name . '] ' . __('Set up Clef for your account', "wpclef");
     $template = 'invite_email.tpl';
     $vars = array("invite_link" => $this->get_link(), "site_name" => $this->site_name);
     return ClefUtils::send_email($this->user_email, $subject, $template, $vars);
 }
 public function send_override_link($user)
 {
     $site_name = get_bloginfo('name');
     $subject = '[' . $site_name . '] ' . __('Clef override URL - keep safe', 'wpclef');
     return ClefUtils::send_email($user->user_email, $subject, 'override_link_email.tpl', array("site_url" => get_site_url(), "override_link" => $this->get_override_link()));
 }