public static void Main(string[] args)
        {
            //NewsletterTask newsletter = new NewsletterTask();
            //newsletter.Execute();

            MailerTask task = new MailerTask();
            task.Execute();
        }
        public static void Main(string[] args)
        {
            //NewsletterTask newsletter = new NewsletterTask();
            //newsletter.Execute();

            MailerTask task = new MailerTask();

            task.Execute();
        }