Wix Email removes src code

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Hello!
We are sending QR code to the client by Wix email, but it removes the QR image… We put src=“${qrcode}” but actual email removes this code.

  1. Code on Wix email

2. Code on email actually sent by Wix

Does anyone know how to fix it or a third part email sender except for SendGrid, since it rejected our project.
Thank you for your attention.

Best,
N.Kim