using TNZAPI.Messaging.Send; namespace TNZFaxBasic { class Program { static void Main(string[] args) { Fax FaxMessage = new Fax(); FaxMessage.Sender = "YOUR_EMAIL_ADDRESS"; FaxMessage.APIKey = "YOUR_API_KEY"; FaxMessage.Recipient = "+6491231234"; FaxMessage.AddAttachment("C:\\File1.pdf"); FaxMessage.SendMessage(); } } }