Tcl
Tcl
Request a Return Receipt for an Email
See more Email Object Examples
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.
Chilkat Tcl Downloads
load ./chilkat.dll
# 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.
set email [new_CkEmail]
CkEmail_put_Subject $email "Please confirm receipt"
CkEmail_put_Body $email "Kindly confirm you received this message."
CkEmail_put_From $email "alice@example.com"
CkEmail_AddTo $email "Bob" "bob@example.com"
# Request a return receipt.
CkEmail_put_ReturnReceipt $email 1
puts "ReturnReceipt = [CkEmail_get_ReturnReceipt $email]"
delete_CkEmail $email