Have you been receiving annoying emails from Paypal and have Magento and eBay sales.
Please check your server that handles PayPal Instant Payment Notifications (IPN). Instant Payment Notifications sent to the following URL(s) are failing:
With Paypal if you sell stuff through eBay and have the IPN (Instant Payment Notification) setup, Paypal will notify your site of every order from eBay including refunds. We will have to modify a core file to skip any eBay orders.
We will need to override a core IPN Function to allow us to skip any orders related to eBay, We have created a Module to do this so we can upgrade our system later and not overwrite this fix.