- What control are you using to display the email contents?
- Are the embedded images shown correctly? If not then feature in email listener named "Embed data for inline images into HTML".
Copied from help:
Embed data for inline images into HTML - if enabled, allows inbound email containing inline images to be rendered correctly when the email is processed as HTML. Enabling this option both base64-encodes the image as embedded HTML content, and does not attach inline images to the generated HTML message.
- Do you see any errors in the console of the Developer tools of the browser?