about a week ago, i stopped receiving the payment received emails from paypal payments. i DO get the order email from zencart, the payment does show in paypal when i look, but i stopped receiving the "Notification of payment received" emails from PayPal. i don't think i have changed anything... what could be the problem?

also when i look at the "PayPal IPN" under the admin, it shows the info there too. the instant payment notifcations are enabled in paypal...

i'm really not sure what the problem is why i stopped receiving those emails.

any help would be greatly appreciated