I'm working with oscommerce and i have problem with Paypal ipn When someone makes a payment, even though the money is coming through OK, on the backend of the website it is saying it is unverified

something like that

: PayPal IPN Verified [Completed (Unverified; $99.90).

I get the email "Notification of payment received" so why is it still pending?

any idea?

Thanks in advance