Ruby

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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Ruby

require 'chilkat'

#  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 = Chilkat::CkEmail.new()
email.put_Subject("Please confirm receipt")
email.put_Body("Kindly confirm you received this message.")
email.put_From("alice@example.com")
email.AddTo("Bob","bob@example.com")

#  Request a return receipt.
email.put_ReturnReceipt(true)

print "ReturnReceipt = " + email.get_ReturnReceipt().to_s() + "\n";