Create a Delivery Status Notification (DSN)

See more Email Object Examples

Demonstrates the Chilkat Email.ToDsn method, which creates a new Delivery Status Notification (DSN) email in the format specified by RFC 3464, based on this email. The generated DSN is returned in the last argument, and the source email is not modified. The first argument is the human-readable explanation, the second is the delivery-status fields, and the third indicates whether to include headers only. This example builds a DSN for a received message.

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    //  Demonstrates the ToDsn method, which creates a new Delivery Status Notification (DSN)
    //  email (RFC 3464) based on this email.  The generated DSN is returned in the last argument.
    //  The source email is not modified.

    CkEmail email = new CkEmail();

    success = email.LoadEml("qa_data/eml/received.eml");
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    //  Create a DSN for the received message.  The 1st argument is the human-readable
    //  explanation, the 2nd is the delivery-status fields, and the 3rd (headerOnly) is false.
    CkEmail dsn = new CkEmail();
    success = email.ToDsn("The message could not be delivered to the recipient.","Action: failed; Status: 5.1.1",false,dsn);
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    //  Populate additional sender/recipient fields on the DSN before sending, then send it.
    Log.i(TAG, dsn.getMime());

    //  Note: The path "qa_data/..." is a relative local filesystem path,
    //  relative to the current working directory of the running application.

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}