title: Delivery Notification in SMTP
body: <p>Below code is workin fine . However I need get Failure or Success Notification to Specific address (b@technospine.com). But I'm receiving Delivery  Notification  mail to FromMail address(A@technospine.com). Can you please help me to resolve this problem?</p>
  
  <pre><code>SmtpClient smtpClient = new SmtpClient();
  
  MailMessage message = new MailMessage();
  MailAddress fromAddress = new MailAddress("A@technospine.com", "BALA");
  MailAddress adminAddress = new MailAddress("b@technospine.com");
  
  smtpClient.Host = "Mail Server Name";
  smtpClient.Port = 25;
  smtpClient.UseDefaultCredentials = true; 
  
  message.From = fromAddress;
  message.To.Add(_sendTo); //Recipent email
  message.Subject = _subject;
  message.Body = _details;
  message.IsBodyHtml = true;
  
  
  message.Headers.Add("Disposition-Notification-To", "b@technospine.com");
  
  message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;
  
  message.ReplyTo = adminAddress;
  
  smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
  smtpClient.Send(message);
  </code></pre>