BounceInspector Class

public class BounceInspector : Component

Public Class BounceInspector
   Inherits Component

public ref class BounceInspector : public Component

Shows how to process mail messages on a local disk.

using System;
using ComponentPro.Net.Mail;

...

// Create a new instance of the BounceInspector class.
BounceInspector inspector = new BounceInspector();

// Process all EML files in directory 'c:\\temp'.
BounceResultCollection result = inspector.ProcessMessages("c:\\temp");

// Display processed emails. 
foreach (BounceResult r in result)
{
    // If this message was identified as a bounced email message. 
    if (r.Identified)
    {
        // Print out the result 
        Console.Write("FileName: {0}\nSubject: {1}\nAddress: {2}\n" + 
                      "Bounce Category: {3}\n" + 
                      "Bounce Type: {4}\nDeleted: {5}\n" + 
                      "DSN Action: {6}\n" + 
                      "DSN Diagnostic Code: {7}\n\n",
                        System.IO.Path.GetFileName(r.FilePath),
                        r.MailMessage.Subject,
                        r.Addresses[0],
                        r.BounceCategory.Name,
                        r.BounceType.Name,
                        r.FileDeleted,
                        r.Dsn.Action,
                        r.Dsn.DiagnosticCode);
    }
}

Console.WriteLine("{0} bounced message found", result.BounceCount);

Imports ComponentPro.Net.Mail

...

' Create a new instance of the BounceInspector class. 
Dim inspector As New BounceInspector()

' Process all EML files in directory 'c:\\temp'. 
Dim result As BounceResultCollection = inspector.ProcessMessages("c:\temp")

' Display processed emails. 
For Each r As BounceResult In result
    ' If this message was identified as a bounced email message. 
    If r.Identified Then 
        ' Print out the result 
        Console.Write("FileName: {0}" & vbLf & "Subject: {1}" & vbLf & "Address: {2}" & vbLf & "Bounce Category: {3}" & vbLf & "Bounce Type: {4}" & vbLf & "Deleted: {5}" & vbLf & "DSN Action: {6}" & vbLf & "DSN Diagnostic Code: {7}" & vbLf & vbLf, System.IO.Path.GetFileName(r.FilePath), r.MailMessage.Subject, r.Addresses(0), r.BounceCategory.Name, r.BounceType.Name, r.FileDeleted, r.Dsn.Action, r.Dsn.DiagnosticCode)
    End If 
Next r

Console.WriteLine("{0} bounced message found", result.BounceCount)

Reference