How To Test If Hotmail Account Exists?

[Morpheuss]

I am trying to test whether my hotmail account exists or not , but the following code did not help me.\[code\]public bool IsExists_SMTPMethod(string email){ string domain = email.Substring(email.IndexOf("@") + 1); var servers = _commander.GetMXServers(domain); Socket socket = null; foreach (MXServer mxserver in servers) { IPHostEntry ipHost = Dns.Resolve(mxserver.MailExchanger); IPEndPoint endPoint = new IPEndPoint(ipHost.AddressList[0], 25); socket = new Socket(endPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp); socket.Connect(endPoint); if (!CheckResponse(socket, ResponseEnum.ConnectSuccess)) { socket.Close(); } else { // If connected, send SMTP commands { SendData(socket, string.Format("HELO {0}\r\n", "machinename")); if (!CheckResponse(socket, ResponseEnum.GenericSuccess)) { socket.Close(); continue; } SendData(socket, string.Format("MAIL FROM: <{0}>\r\n", "[email protected]")); CheckResponse(socket, ResponseEnum.GenericSuccess); SendData(socket, string.Format("RCPT TO: <{0}>\r\n", email)); bool result = CheckResponse(socket, ResponseEnum.GenericSuccess); if (!result) { socket.Close(); continue; } else return true; } } } return false;}\[/code\]