Using both Paypal PDT and IPN
Hello, I have always used both PDT and IPN for paypal, without problem.
Recently I received a message from paypal:
Please check your server that handles PayPal Instant Payment Notifications (IPN). IPNs sent to the following URL(s) are failing:
http://mywebsite.com/?paypal_ipn=xxx...843fb5d08e1464
If you do not recognize this URL, you may be using a service provider that is using IPN on your behalf. Please contact your service provider with the above information. If this problem continues, IPNs may be disabled for your account.
Thank you for your prompt attention to this issue.
My question is, am I even supposed to be using both IPN and PDT? Is it ok to just use PDT with Classipress and disabling IPN?