Paypal2download only allows people who have made a purchase via Paypal to instantly access your downloads. After a purchase via Paypal, the customer is automatically emailed a username and password to access your downloads. The built in mailing list manager allows you to send emails or newsletters to all of your customers. What can I sell using Paypal2download V 4.0? Basically you can sell files, digital goods or products from your website that can be downloaded. For example: mp3's, e-books, artwork, video, software, screensavers, documents etc.