I am using the Django-PayPal plugin ( http://github.com/johnboxall/django-paypal/tree/master ), which works almost normally with one problem.
I followed the integration process and thought that everything was the same as in the manual. But there is a problem that I always get the INVALID response flag. I cannot determine an acceptable IPN.
Do you know how not to get an INVALID response in IPN?
Tomas
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