Vfrdtyky

I fetched emails from servers by using IMAP or POP3 and entered the fetched emails to database but I noticed there are a lot of bounced emails entered to the system so I searched a lot on google to check fetched email and if it's bounced email I'll not enter it to the system and I found library BounceDetectResult to detect if email is bounced or not but this library working only with message type MimeMessage so It's useful when I use IMAP but it's not work with message type OpenPop.Mime.Message so I can't use It when I use POP3

 var result= BounceDetectorMail.Detect(message);//message type MimeMessage

        if (result.IsBounce) 

        {

            em.DelivaryFailure = true;

        }

so my problem I didn't find way to detect if my retrieved message is bounced or not when I use pop3 in retrieving

It looks like the MailBounceDetector library that you mentioned uses my MimeKit library to detect if a message is a bounced message or not.

The good news is that you can use that library because I also have a library that does POP3 called MailKit, so you can use that instead of OpenPOP.NET.

For any who may need, from Bounce inspector software library, supports both POP3 and IMAP:

// POP3 server information.

const string serverName = "myserver";

const string user = "name@domain.com";

const string password = "mytestpassword";

const int port = 995;

const SecurityMode securityMode = SecurityMode.Implicit;

// Create a new instance of the Pop3Client class.

Pop3Client client = new Pop3Client();

Console.WriteLine("Connecting Pop3 server: {0}:{1}...", serverName, port);

// Connect to the server.

client.Connect(serverName, port, securityMode);

// Login to the server.

Console.WriteLine("Logging in as {0}...", user);

client.Authenticate(user, password);

// Initialize BounceInspector.

BounceInspector inspector = new BounceInspector();

inspector.AllowInboxDelete = false; // true if you want BounceInspector automatically delete all hard bounces.

// Register processed event handler.

inspector.Processed += inspector_Processed;

// Download messages from Pop3 Inbox to 'c:test' and process them.

BounceResultCollection result = inspector.ProcessMessages(client, "c:\test");

// 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}nBounce Category: {3}nBounce Type: {4}nDeleted: {5}nDSN Action: {6}nDSN Diagnostic Code: {7}nn",

                       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);

// Disconnect.

Console.WriteLine("Disconnecting...");

client.Disconnect();