IPN isn't been send to website

[Jodaline]

Hello Micah,
not sure if this is the right place to ask for help, but I found your file in a plugin I am using and since the support is no help, I thought I go to the source and see if you can help me.
I have a paid membership site that has a paypal gateway. However eventho I am receiving IPNs on my Paypal account with the status of 200 which means everything went ok, the IPNs aren't send back to the website so the memberships obviously are not beeing activated. Maybe I inserted the wrong url in my paypal account? I am going mad here because I can not find the cause for my problem.
It would be great of yout to get back to me on this issue.
kind regards,
Joanne