Send Email with Event Handler in C#¶

using System;
using System.Collections.Generic;
using System.Text;
using EASendMail; //add EASendMail namespace
namespace mysendemail
{
    class Program
    {
       public static void OnSecuring(
            object sender,
            ref bool cancel)
        {
            Console.WriteLine("Securing ... ");
        }

        public static void OnAuthorized(
            object sender,
            ref bool cancel)
        {
            Console.WriteLine("Authorized");
        }

        public static void OnIdle(
            object sender,
            ref bool cancel)
        {
            // this event is fired when the SmtpClient is wait for response from
            // smtp server, if you add Application.DoEvents in windows form application,
            // it can prevent your form has no response before SendMail is not returned.
            // Application.DoEvents();
        }

        public static void OnConnected(
            object sender,
            ref bool cancel)
        {
            Console.Write("Connected\r\n");
        }

        public static void OnSendingDataStream(
            object sender,
            int sent,
            int total,
            ref bool cancel)
        {
            Console.WriteLine(String.Format("{0}/{1} sent", sent, total));
        }

        static void Main(string[] args)
        {
            try
            {
                SmtpMail oMail = new SmtpMail("TryIt");

                // 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";

                // Set email subject
                oMail.Subject = "test email from c# with event handler";
                // Set email body
                oMail.TextBody = "this is a test email sent from c# project with event handler";

                // Your smtp server address
                SmtpServer oServer = new SmtpServer("smtp.emailarchitect.net");

                // User and password for ESMTP authentication, if your server doesn't require
                // User authentication, please remove the following codes.
                oServer.User = "test@emailarchitect.net";
                oServer.Password = "testpassword";

                // Most mordern SMTP servers require SSL/TLS connection now.
                // ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
                oServer.ConnectType = SmtpConnectType.ConnectTryTLS;

                // If your SMTP server uses 587 port
                // oServer.Port = 587;

                // If your SMTP server requires SSL/TLS connection on 25/587/465 port
                // oServer.Port = 25; // 25 or 587 or 465
                // oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;

                Console.WriteLine("start to send email ...");

                SmtpClient oSmtp = new SmtpClient();

                // Add event handlers to current SmtpClient instance.
                oSmtp.OnAuthorized += new SmtpClient.OnAuthorizedEventHandler(OnAuthorized);
                oSmtp.OnIdle += new SmtpClient.OnIdleEventHandler(OnIdle);
                oSmtp.OnConnected += new SmtpClient.OnConnectedEventHandler(OnConnected);
                oSmtp.OnSecuring += new SmtpClient.OnSecuringEventHandler(OnSecuring);
                oSmtp.OnSendingDataStream +=
                    new SmtpClient.OnSendingDataStreamEventHandler(OnSendingDataStream);

                oSmtp.SendMail(oServer, oMail);

                Console.WriteLine("email was sent successfully!");
            }
            catch (Exception ep)
            {
                Console.WriteLine("failed to send email with the following error:");
                Console.WriteLine(ep.Message);
            }
        }
    }
}