MyIPN allows you to automatically accept payments from Paypal for either monthly recuring Subscriptions or sales of digitally delivered items such as scripts, software and ebooks.
The script uses a mysql database and stores all of the items you have for sale and/or subscription options you have. Using the Administration screen you can add items to the database, the script will then create the html code required for your paypal 'Buy Now' or 'Subscribe Now' button.
When Paypal's IPN system contacts the script, it checks to ensure it is a valid transaction and then emails you and the buyer. If the buyer is buying a digitally deliverered product, that file is attached to the email sent to the buyer, if they are subscribing to your site, it will add their paypal generated username/passwordand store it in the database and add to the htpasswd file. Paypal will give the username and password to the subscriber when making payment.
We have been using this script for a few months before releasing it to ensure it works. All of our script sales made via Paypal are processed by the MyIPN ipn script.
Payment is made via Paypal, click on the 'Buy Now' button for the currency you wish to pay in and you will be taken to the Paypal website to make your payment. As soon as your payment has been completed your script will be emailed to you at the email address you used to pay with.