Android™
Android™
Read Delivery-Status Fields from a Bounce
See more Email Object Examples
Demonstrates the Chilkat Email.GetDeliveryStatusInfo method, which returns a named field from the message/delivery-status part of a delivery-status notification (DSN). It should be called only for an email identified as a delivery-status notification. This example loads a bounce message and reads its Action, Status, and Final-Recipient fields.
Background: When a message can't be delivered, the mail system returns a bounce as a
multipart/report whose message/delivery-status part carries machine-readable fields: Action (e.g. failed), Status (a numeric code like 5.1.1 meaning "no such mailbox"), and Final-Recipient (the address that failed). Parsing these lets a program automatically detect hard bounces and prune bad addresses from a mailing list.Chilkat Android™ Downloads
// 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 GetDeliveryStatusInfo method, which returns a field from the
// message/delivery-status part of a delivery-status notification (DSN / bounce).
// Call it only for an email that is a delivery-status notification.
CkEmail email = new CkEmail();
success = email.LoadEml("qa_data/eml/dsn_bounce.eml");
if (success == false) {
Log.i(TAG, email.lastErrorText());
return true;
}
// Read individual fields from the message/delivery-status part.
Log.i(TAG, "Action: " + email.getDeliveryStatusInfo("Action"));
Log.i(TAG, "Status: " + email.getDeliveryStatusInfo("Status"));
Log.i(TAG, "Final-Recipient: " + email.getDeliveryStatusInfo("Final-Recipient"));
// 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."
}
}