Java

Check Whether an Email Is a multipart/report

Demonstrates the Chilkat Email.IsMultipartReport method, which returns true when the top-level message structure is a multipart/report (such as a bounce/DSN or a read receipt/MDN). This example loads an email and reports whether it is a multipart/report.

Background: Automated mail — delivery failures and read receipts — arrives wrapped in the multipart/report structure, which carries machine-readable report parts. Detecting it with IsMultipartReport is the first step in a bounce-handling pipeline: once you know a message is a report, you can pull its parts with GetReport or read delivery fields with GetDeliveryStatusInfo to act on failures automatically.

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import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Email;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the IsMultipartReport method, which returns true if the top-level message
        // structure is a multipart/report (such as a bounce / DSN or a read receipt / MDN).

        Email email = new Email();

        try {
            email.loadEml("qa_data/eml/dsn_bounce.eml");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        if (email.isMultipartReport()) {
            System.out.println("This email is a multipart/report (e.g. a bounce or read receipt).");
        } else {
            System.out.println("This email is not a multipart/report.");
        }

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