Processing a read receipt (MDN)

In this article we’ll show how to process a read receipt.

Read receipts also known as MDNs or Message Delivery Notifications are used to notify the message sender that some action has happened with their message (it was displayed, processed, deleted)

All MDNs for a received message are available through IMail.ReadReceipts property.

// C#

string eml = imap.GetMessageByUID(uid);
IMail email = new MailBuilder().CreateFromEml(eml);
MimeMessageDispositionNotification mdn = email.ReadReceipts[0];

string finalRecipient = mdn.FinalRecipient; 
      // recipient@example.com
DispositonActionMode actionmode = mdn.ActionMode; 
      // e.g. DispositonActionMode.ManualAction
DispositonSendingMode sendingMode = mdn.SendingMode; 
      // e.g. DispositonSendingMode.SentManually
string originalMessageID= mdn.OriginalMessageID; 
      // e.g. "message-id@original.com"
DispositonType dispositionType = mdn.Type; 
      // e.g. DispositonType.Displayed, DispositonType.Deleted

' VB.NET

Dim eml As String = imap.GetMessageByUID(uid)
Dim email As IMail = New MailBuilder().CreateFromEml(eml)
Dim mdn As MimeMessageDispositionNotification = email.ReadReceipts(0)

Dim finalRecipient As String = mdn.FinalRecipient 
     ' recipient@example.com
Dim actionmode As DispositonActionMode = mdn.ActionMode 
      ' e.g. DispositonActionMode.ManualAction
Dim sendingMode As DispositonSendingMode = mdn.SendingMode 
      ' e.g. DispositonSendingMode.SentManually
Dim originalMessageID As String = mdn.OriginalMessageID 
      ' e.g. "message-id@original.com"
Dim dispositionType As DispositonType = mdn.Type 
      ' e.g. DispositonType.Displayed, DispositonType.Deleted