Classify Email as Bounce (DSN) or Automated Reply

Demonstrates how to use the Chilkat Bounce component to determine if an email is an bounce (DSN) or an automated reply.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

// Needs #include <CkBounce.h>
// Needs #include <CkEmail.h>

    CkString strOut;

    CkBounce bounce;

    bool success;
    success = bounce.UnlockComponent("Anything for 30-day trial");
    if (success == false) {
        strOut.append("Failed to unlock component\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkEmail email;

    //  Load an email from a .eml file.
    //  (This example loads an Email object from a .eml file,
    //  but the object could have been read
    //  directly from a POP3 or IMAP mail server using
    //  Chilkat's POP3 or IMAP implementations.)
    success = email.LoadEml("sampleBounce.eml");
    if (success == false) {
        strOut.append(email.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    success = bounce.ExamineEmail(email);
    if (success == false) {
        strOut.append(bounce.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    if (bounce.get_BounceType() == 1) {
        //  Hard bounce, log the email address
        strOut.append("Hard Bounce: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 2) {
        //  Soft bounce, log the email address
        strOut.append("Soft Bounce: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 3) {
        //  General bounce, no email address available.
        strOut.append("General Bounce: No email address");
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 4) {
        //  General bounce, log the email address
        strOut.append("General Bounce: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 5) {
        //  Mail blocked, log the email address
        strOut.append("Mail Blocked: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 6) {
        //  Auto-reply, log the email address
        strOut.append("Auto-Reply: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 7) {
        //  Transient (recoverable) Failure, log the email address
        strOut.append("Transient Failure: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 8) {
        //  Subscribe request, log the email address
        strOut.append("Subscribe Request: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 9) {
        //  Unsubscribe Request, log the email address
        strOut.append("Unsubscribe Request: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 10) {
        //  Virus Notification, log the email address
        strOut.append("Virus Notification: ");
        strOut.append(bounce.bounceAddress());
        strOut.append("\r\n");
    }

    if (bounce.get_BounceType() == 11) {
        //  Suspected bounce.
        //  This should be rare.  It indicates that the Bounce
        //  component found strong evidence that this is a bounced
        //  email, but couldn//t quite recognize everything it
        //  needed to be 100% sure.  Feel free to notify
        //  support@chilkatsoft.com regarding emails having this
        //  bounce type.
        strOut.append("Suspected Bounce!");
        strOut.append("\r\n");
    }


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());