Displaying Images from Rich Text Fields in Email Body

Is it possible to display images embedded in rich text fields within email bodies? I understand that the image resource is included in the email, but it cannot be displayed because the path cannot be accessed.
I've already tried preprocessing with JavaScript to insert the image directly into the text, but this doesn't seem to work correctly. Is there a straightforward way to achieve this?

Leap emails can contain static images (copied in to the body by the app author), but we don't currently have a mechanism to allow you to dynamically construct the HTML code of the email.