Java

Request a Return Receipt for an Email

Demonstrates the Chilkat Email.ReturnReceipt property. Set it to true to request a return-receipt when the message is received; this causes a Disposition-Notification-To header to be added when the email is sent. The default is false. This example enables the request.

Background: A return receipt (technically a Message Disposition Notification, MDN) asks the recipient's mail client to send back a small confirmation when the message is opened. It is only a request: the receiving client or server is free to ignore it, and many prompt the user before sending anything. Because of this, a return receipt is not reliable proof that a human actually read the message — treat it as a courtesy signal, not a guarantee.

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Chilkat2 Java

import com.chilkatsoft.chilkat2.Email;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the Email.ReturnReceipt property.  Set to true to request a
        // return-receipt when the email is received.  This causes a Disposition-Notification-To
        // header to be added when the email is sent.  The default is false.

        Email email = new Email();
        email.setSubject("Please confirm receipt");
        email.setBody("Kindly confirm you received this message.");
        email.setFrom("alice@example.com");
        email.addTo("Bob", "bob@example.com");

        // Request a return receipt.
        email.setReturnReceipt(true);

        System.out.println("ReturnReceipt = " + email.getReturnReceipt());
    }
}