I'm using a program call E-Book Pro. After you create your e-book it allows you to create username and passwords. In order for person to view the ebook they will get an email with a link to dload the book and a unique username and password which is based off a list which the ebook program created. So I need to blast emails using my CRM and each HTML email I blast I need to send an unique username password which is called up from a database or list which has been pre-created. Once that user pass has been sent out or called up ... it's removed from the list and the next one down the list gets called up and so forth. I also need the username and passwords protected or encrypted.