Oxid Logo being used in e-mails from SMTP server instead of website's

Hello, I’ve setup a shop with Oxid CE 4.10.4, payment and everything, but when SMTP server generates and sends the email confirming the purchase of the order to the buyer, it has the Oxid eShop logo, instead of the website’s logo. How do I change this to the logo of my website? Thank you.

PS. Same thing for the Invoice, and Deliv. Note

Simply replace all the oxid logos in out/your-theme/img/ with your own logos with similar size