Change THIS:
                $mail = new Mail();	
                $mail->protocol = $this->config->get('config_mail_protocol');
                $mail->parameter = $this->config->get('config_mail_parameter');
                $mail->hostname = $this->config->get('config_smtp_host');
                $mail->username = $this->config->get('config_smtp_username');
                $mail->password = $this->config->get('config_smtp_password');
                $mail->port = $this->config->get('config_smtp_port');
                $mail->timeout = $this->config->get('config_smtp_timeout');				
                $mail->setTo($this->config->get('config_email'));
                $mail->setFrom($from);
                $mail->setSender($aaq_name);
                $mail->setSubject($subject);					
                $mail->setHtml($message);
                $mail->send();

TO:
                $mail = new Mail();
                $mail->protocol = $this->config->get('config_mail_protocol');
                $mail->parameter = $this->config->get('config_mail_parameter');
                $mail->smtp_hostname = $this->config->get('config_mail_smtp_hostname');
                $mail->smtp_username = $this->config->get('config_mail_smtp_username');
                $mail->smtp_password = html_entity_decode($this->config->get('config_mail_smtp_password'), ENT_QUOTES, 'UTF-8');
                $mail->smtp_port = $this->config->get('config_mail_smtp_port');
                $mail->smtp_timeout = $this->config->get('config_mail_smtp_timeout');
                $mail->setTo($this->config->get('config_email'));
                $mail->setFrom($this->config->get('config_email'));
                $mail->setSender($aaq_name);
                $mail->setReplyTo($from);
                $mail->setSubject($subject);					
                $mail->setHtml($message);
                $mail->send();