JavaScript

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.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

//  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.

var email = new CkEmail();
email.Subject = "Please confirm receipt";
email.Body = "Kindly confirm you received this message.";
email.From = "alice@example.com";
email.AddTo("Bob","bob@example.com");

//  Request a return receipt.
email.ReturnReceipt = true;

console.log("ReturnReceipt = " + email.ReturnReceipt);