php email reader and notification though header parameters

down vote accepted

For the reading confirmations: $header.= "X-Confirm-Reading-To: test@test.com\n" ;  $header.= "Disposition-Notification-To: test@test.com\n"; You have to add the X-Confirm-Reading-To header. X-Confirm-Reading-To: <address> For delivery confirmations: You have to add the Disposition-Notification-To header.