Abstract: A system and method for determining e-commerce purchase eligibility of product offerings restricted to particular market segments and used in conjunction with an e-commerce system is described. Identifying information provided by the user is compared to a white list of eligibility parameters selected and configured by the vendor. An e-mail confirming eligibility and containing a customized URL is provided to the user; selecting the link automatically logs the user into the account. The system allows limited or unlimited purchases to be made by qualified users. Fraud detection is performed prior to checkout. Once the order has been processed the user may immediately download the product. An e-mail is sent to the user providing delayed downloading instructions and license key. Downloading may inject the license key for automatic software product or application activation.