'mail' => array(
                'class' => 'ext.yii-mail.YiiMail',
                'transportType'=>'smtp',
                'transportOptions'=>array(
                        'host'=>'',
                        'username'=>'',
                        'password'=>'',
                        'port'=>'25',                        
                ),
                'viewPath' => 'application.views.mail',                
        ),