使用.net发邮件

• 方法一： 通过SmtpClient 对象来发送邮件

    SmtpClient smtpClient = new SmtpClient("2.com");

            smtpClient.Credentials = new System.Net.NetworkCredential("1@2.com", "pwd");
            smtpClient.UseDefaultCredentials = true;
            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
            smtpClient.EnableSsl = true;
            MailMessage mail = new MailMessage();

            mail.From = new MailAddress("1@2.com");
            mail.To.Add(new MailAddress("1@2.com"));

            smtpClient.Send(mail);

• 方法二：借助Outlook来发送（需要借助：Microsoft.Office.Interop.Outlook.dll)

     using Outlook = Microsoft.Office.Interop.Outlook;
  Outlook.Application app = new Outlook.Application();
              Outlook.MailItem mailItem = app.CreateItem(Outlook.OlItemType.olMailItem);
              mailItem.Subject = "Test";
              mailItem.To = "1@2.com";
              mailItem.Body = "This is the message.";
  　　　　　　　mailItem.Attachments.Add(attachment);／／此处的attachment是附件的地址。
              mailItem.Display(false);
              mailItem.Send();