Send a QR code to SMTP mail

Hello, hope you can help me. I have created a test app that sends a SMTP mail one I input a email address, and select an action button. This works fine.

I attempted to imbed a QR code to the mail, but I just get the following.
Can anybody point me where I am going wrong?



Hey @Guy_N! What is {{qrCode1}} evaulating to in your app? If you hover over it, does it show any data?