using System; 
using System.Collections.Generic; 
using System.Text; 

// Add EASendMail namespace
using EASendMail; 

namespace mysendemail 
{ 
    class Program 
    { 
        static void Main(string[] args) 
        { 
            SmtpMail oMail = new SmtpMail("TryIt"); 
            SmtpClient oSmtp = new SmtpClient(); 

            // Set sender email address, please change it to yours
            oMail.From = "test@emailarchitect.net"; 

            // Set recipient email address, please change it to yours
            oMail.To = "support@emailarchitect.net"; 

            // Do not set SMTP server address
            SmtpServer oServer = new SmtpServer(""); 

            try 
            { 
                Console.WriteLine("start to test email address ..."); 
                oSmtp.TestRecipients(oServer, oMail); 
                Console.WriteLine("email address was verified!"); 
            } 
            catch (Exception ep) 
            { 
                Console.WriteLine("failed to test email with the following error:"); 
                Console.WriteLine(ep.Message); 
            } 
        } 
    } 
}