Duplicate transaction emails
In reading some comments on other issues I get the sense this is intentional.
In my Stripe Dashboard settings, I have turned off emailed receipts. Donors are still receiving a receipt from CiviCRM & Stripe.
From a Stripe support rep:
I checked your settings and can confirm that you turned off email receipts for your new customers. I do see that you created a dynamic receipt email address for 11 out of the 30 most recent customers, so the default settings don't apply there. This is why they may still be receiving emails from Stripe. If you want to stop sending those receipts, you will need to change your settings so a dynamic receipt email address will no longer be created.
You are passing a ‘receipt_email’ parameter for your charges. This will override the notification setting, so the charges must be created without this value. You or your developer can do this by removing the ‘receipt_email’ parameter from the charge requests:
Is there a way to stop Stripe from emailing my constituents when a contribution is processed?