Sets up a REST endpoint to be used by Postmark’s Open Webhook to log opens of Postmark-delivered (via Postmark Approved) messages as Easy Digital Downloads (EDD) Customer Notes
Requires both Postmark Approved (with an accurate Server API key) and Easy Digital Downloads (2.6+) to be installed and active
Please see the GitHub repository: https://github.com/jchristopher/postmark-open-to-edd-customer-note