Per Product Emails Documentation
EDD sends an email to the purchaser with every sale. Per Product Emails allows you to additionally send a custom email for any given product.
Common Issues and FAQ
This extension does not support sending unique emails for product variations at this time.
Original Purchase Receipts
Easy Digital Downloads will send a purchase receipt as well as a custom email when Per Product Emails is active on a specific Download. You can disable this by checking the "Disable Standard Purchase Receipt" option in the settings area.
Multiple Downloads in the cart
Once custom emails have been configured, it will send a custom email for each item in the cart. For example, if you have configured emails for Product A and Product B and someone purchases both in the same transaction, the extension will send two custom emails - one for each product