Stopping Multiple Print outs of e-mail coupons
I am looking for a way to send out birthday e-mails, but stop people from printing out multiple e-mails and redeeming them.
The stores wont have any control of stopping them from that side, so I need a way to write the code to place on the website where they press print in the e-mail, it directs them to the website and only allows them to print it once.
Can this be done? If so, how?
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