paypal sandbox notifcations - where do buyer notifications go?

I am using the paypal sandbox to test the full process for a buy now button. Everything goes fine, except, I cannot find where confirmation emails go for the buyer. I have logged into the sandbox under the buyer email. I have logged into the developer email and checked the notifications sent to the developer for all test accounts, and notifications for the individual test accounts. The test seller account gets a notification email that there was a sale, but the test buyer account gets absolutely nothing.

Also, this is testing the path where the buyer pays with a simulated credit card number, and is not logged into paypal. (the buyer gives their email associated with their paypal test account, but this is the path where the buyer indicates they want to pay with a credit card, not their paypal account.)

Any help would be greatly appreciated.

Thanks.