Thank you – I can confirm the debug log is as expected. Great support!
For reference by other users…
I am continuing my investigation by confirming delivery of the messages through my website’s email system. I understand that this can sometimes be the problem totally unrelated to this great plugin.
[05/10/2018 8:15 AM] - Payment processing started. [05/10/2018 8:15 AM] - Triggering hook for addons to process posted data if needed. [05/10/2018 8:15 AM] - Checking received data. [05/10/2018 8:15 AM] - Got product ID: 6387. Trying to get info from database. [05/10/2018 8:15 AM] - Got required product info from database. [05/10/2018 8:15 AM] - Getting API keys and trying to create a charge. [05/10/2018 8:15 AM] - Firing pre-payment hook. [05/10/2018 8:15 AM] - Processing payment. [05/10/2018 8:15 AM] - Firing post-payment hooks. [05/10/2018 8:15 AM] - Notification email sent to buyer: mail@example.com, From email address used: Example <mail@example.com> [05/10/2018 8:15 AM] - Notification email sent to seller: mail@example.com, From email address used: Example <mail@example.com> [05/10/2018 8:15 AM] - Payment has been processed successfully.