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.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkBounce bounce = new CkBounce();

    boolean success;
    success = bounce.UnlockComponent("Anything for 30-day trial");
    if (success == false) {
        System.out.println("Failed to unlock component");
        return;
    }

    CkEmail email = new CkEmail();

    //  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) {
        System.out.println(email.lastErrorText());
        return;
    }

    success = bounce.ExamineEmail(email);
    if (success == false) {
        System.out.println(bounce.lastErrorText());
        return;
    }

    if (bounce.get_BounceType() == 1) {
        //  Hard bounce, log the email address
        System.out.println("Hard Bounce: " + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 2) {
        //  Soft bounce, log the email address
        System.out.println("Soft Bounce: " + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 3) {
        //  General bounce, no email address available.
        System.out.println("General Bounce: No email address");
    }

    if (bounce.get_BounceType() == 4) {
        //  General bounce, log the email address
        System.out.println("General Bounce: "
             + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 5) {
        //  Mail blocked, log the email address
        System.out.println("Mail Blocked: " + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 6) {
        //  Auto-reply, log the email address
        System.out.println("Auto-Reply: " + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 7) {
        //  Transient (recoverable) Failure, log the email address
        System.out.println("Transient Failure: "
             + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 8) {
        //  Subscribe request, log the email address
        System.out.println("Subscribe Request: "
             + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 9) {
        //  Unsubscribe Request, log the email address
        System.out.println("Unsubscribe Request: "
             + bounce.bounceAddress());
    }

    if (bounce.get_BounceType() == 10) {
        //  Virus Notification, log the email address
        System.out.println("Virus Notification: "
             + bounce.bounceAddress());
    }

    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.
        System.out.println("Suspected Bounce!");
    }

  }
}