I am facing an issue with Paypal IPN message in Magento 1.8.1. When I placed the order with Paypal the Order status still shows Pending even I have set the IPN notification URL to http://www.devdomain.com/paypal/ipn/. Also try to place the IPN script in my root folder but no success. :(
I am using Paypal Standard. When I see inside the Paypal it shows 500 error in IPN history page.
Please advise how I can resolve this issue.