I noticed, while perusing my first sale, that  the email that is sent to the buyer after they make a purchase is sent to the "wrong" email address.

Someone created an account with their work email address. They then chose to buy a file, and used Paypal to do so. However, they used their personal paypal email address (again, perhaps not unusual).

The email announcing the purchase and the download link was then sent to the personal paypal email, not the one they were registered under. Shouldn't we have maintained consistency and used their registered one - I know there are arguments about needing registration, but while we have it, we should maintain the use of that account.

Is this just a setup error on my site, or is this the design?

Steve