Sending a message with Postmark Async

Program.cs

using System.Threading.Tasks;
using PostmarkDotNet;

namespace ConsolePostmarkLibTester
{
    class Program
    {
        static void Main(string[] args)
        {
            Task.Run(async () =>
            {
                PostmarkMessage message = new PostmarkMessage
                {
                    From = "sender@example.com",
                    To = "recip@example.com",
                    Subject = "Test",
                    HtmlBody = "Hello",
                    TextBody = "Hello",
                    ReplyTo = "reply@example.com"
                };

                // Adding attachments
                // See http://developer.postmarkapp.com/developer-build.html#attachments for allowed extensions.
                //message.AddAttachment(fileName, "Content-Type");

                PostmarkClient client = new PostmarkClient("api_token");

                var result = await client.SendMessageAsync(message);
            }).Wait();

        }

      
    }
}