Scheduled Task to send email

EmailSendWithScheduledTask.cs

namespace Sample.EmailMechanism
{
    public class NotificationController
    {
        public NotificationController() { }

        public void Check() 
        {
            NotificationRepository repository = new NotificationRepository();
            IEnumerable<NotificationMessage> list = repository.SelectNotification();

            bool controldummy;
            foreach (NotificationMessage item in list)
            {
                try
                {
                    EmailHelper.SendEmail(item);
                    controldummy = true;
                }
                catch (Exception)
                {
                    controldummy = false;

                    item.Status = EmailStatus.ERROR;
                    item.TryCount++;
                    repository.UpdateNotification(item);
                }

                if (controldummy)
                {
                    item.Status = EmailStatus.SEND;
                    item.TryCount++;
                    repository.UpdateNotification(item);
                }
            }
        }
    }
    
    public class Job
    {
        public Job() { }

        public static void Testit(object state) 
        {
            Console.WriteLine("Called...");  
        }

        public static void CheckEmails(object state) 
        {
            NotificationController controller = new NotificationController();
            controller.Check();

        }
    }

    public class Scheduler
    {
        public Scheduler() { }

        public void Scheduler_Start()
        {
            //TimerCallback callbackMinute = new TimerCallback(Job.Testit);
            //Timer minuteTimer = new Timer(callbackMinute, null, TimeSpan.Zero, TimeSpan.FromSeconds(1.0));

            TimerCallback callbackSecond = new TimerCallback(Job.CheckEmails);
            Timer minuteTimer = new Timer(callbackSecond, null, TimeSpan.Zero, TimeSpan.FromSeconds(10.0));

        }
    }	
}