In the settings of your product, you have ticked the checkbox to Receive a copy of email sent to buyers, so you are being Bcc:'d on the very same thank-you email message we send to your buyers of that product.
It appears you last edited your product on Sept. 1st, so perhaps you ticked that box then, which would explain why you've started receiving these copies if you hadn't been before.
To fix this, from your E-junkie Dashboard go to Manage Products > View/Edit Products, then under the Select Product heading there is a dropdown menu you can click to expand a list of all your products. Select the product you want to edit there, then click the View/Edit Product button. Scroll down to the Send Product Thank-you Email section and un-tick the box to Receive a copy of email sent to buyers (if you don't see that setting, look near the top of that screen and make sure the box is ticked to Show Advanced Settings). Then click the green Submit button near the top or bottom of that screen to apply changes.
