how to check whether a user opened the mail we sent

Using Amazon AWS we can know how many mails are delivered,how many bounced and how many were rejected.But how to check whether user has opened our mail and clicked on the link we have given in our mail.And using getsendstatistics() method of AWS we can only get the number of bounces,rejects and delivered mails.Is there any method which gives us the details whether a user opened his mail or not.