How to confirm that mail has been delivered or not?

Question

Below is my coding, just have a look at it

System.Net.Mail.MailMessage oMail = new System.Net.Mail.MailMessage();
System.Net.Mail.SmtpClient smtp = new Syste         


        

Answer 1

In case somebody stumbles across. Here is my experience on an old Win 2003 server with Exchange. My .Net app uses SMTP to send emails and used a group address as the "From" so any replies would go to the entire group. This is a dispatching operation and we wanted anyone in the group to assist with any replies. We expected any non delivery notices to be sent to the group. It does not happen. I even went into the Message Tracking and saw that Exchange said it sent the notification to the group, but they never got it. Next I went into SMTP Virtual Server Properties and entered the group email address in the "Send copy of Non-Delivery Report to:". Same result, the Message Tracking says it sent it to the group but it was never delivered. Apparently the non delivery notices will only be delivered to an email address of an individual not a group. I changed it to an individual address and it works.