Validation post isn't from PayPal - IPN Issues
I'm using 3.1.5 and I have am having an issue with the IPN.
On every purchase i get the following emails from the site:
Subject line: "IPN VERIFIED"
Then a minute later I get this email below -
Subject line: "Validation post isn't from PayPal"
Does anyone know what this means? I'm assuming the IPN is NOT working because when I tested it PayPal required me to click a link in order to finalize the payment. I thought the IPN made that obsolete. Any help would be greatly appreciated.