using MailKit.Net.Smtp;

using MailKit.Security;

using MimeKit;

using System.Threading.Tasks;

namespace ConsoleApp1

{

    public class MailHelper

    {

        public static void Send(string email, string subject, string message)

        {

            var emailMessage = new MimeMessage();

            emailMessage.From.Add(new MailboxAddress("tianwei blogs", "mail@hantianwei.cn"));

            emailMessage.To.Add(new MailboxAddress("mail", email));

            emailMessage.Subject = subject;

            emailMessage.Body = new TextPart("plain") { Text = message };

            using (var client = new SmtpClient())

            {

                client.Connect("smtp.hantianwei.cn", , true);

                client.Authenticate("mail@hantianwei.cn", "******");

                client.Send(emailMessage);

                client.Disconnect(true);

            }

        }

        public static async Task SendEmailAsync(string email, string subject, string message)

        {

            var emailMessage = new MimeMessage();

            emailMessage.From.Add(new MailboxAddress("tianwei blogs", "mail@hantianwei.cn"));

            emailMessage.To.Add(new MailboxAddress("mail", email));

            emailMessage.Subject = subject;

            emailMessage.Body = new TextPart("plain") { Text = message };

            using (var client = new SmtpClient())

            {

                await client.ConnectAsync("smtp.hantianwei.cn", , SecureSocketOptions.None).ConfigureAwait(false);

                await client.AuthenticateAsync("mail@hantianwei.cn", "******");

                await client.SendAsync(emailMessage).ConfigureAwait(false);

                await client.DisconnectAsync(true).ConfigureAwait(false);

            }

        }

    }

}