gistfile1.cs

using System;
using System.IO;
using System.Text;
using System.Net;

namespace MadMimi
{
	class Program
	{
		static string apiKey = "YOUR MAD MIMI API KEY";
		static string username = "YOUR MAD MIMI USER NAME";
		
		static string recipient = "email@domain.com";
		static string promotion = "apitest";
		static string address = "from@madmimi.com";
		static string subject = "Hey! This is an email from the API!";
		static string body = "---\nname: Marc";
		
		public static void Main(string[] args) {
			Console.WriteLine(SendEmail());
			Console.ReadKey();
		}
		
		public static string SendEmail() {
			try {
				WebRequest request = WebRequest.Create("https://madmimi.com/mailer");
				request.Method = "POST";
				request.ContentType = "application/x-www-form-urlencoded";
				
				string requestData = string.Format(
					"username={0}&api_key={1}&promotion_name={2}&recipients={3}&from={4}&body={5}&subject={6}",
					username,
					apiKey,
					promotion,
					recipient,
					address,
					body,
					subject
				);
				
				Console.WriteLine(requestData);
				Console.WriteLine();
				
				byte[] bytes = Encoding.UTF8.GetBytes(requestData);
				request.ContentLength = bytes.Length;
				
				using(Stream requestStream = request.GetRequestStream()) {
					requestStream.Write(bytes, 0, bytes.Length);
					requestStream.Close();
				}
				
				string responseData;
				WebResponse response = request.GetResponse();
				using(StreamReader responseStream = new StreamReader(response.GetResponseStream())) {
					responseData = responseStream.ReadToEnd();
					responseStream.Close();
				}
				
				return responseData;
			} catch(WebException webEx) {
				return webEx.ToString();
			} catch(Exception ex) {
				return ex.ToString();
			}
		}
		
	}
}