Add form's custom HTML into mail on submit

Good morning,
I've a form with some custom HTML.
Inside these areas I've insert text and images that I want to include into the e-mail I send on submit using {AUTO_FIELDS}.

For example, if I've a form like:
- First field: custom HTML with text and image
- Second field: textbox
- Third field: checkbox
With {AUTO_FIELDS} it send an e-mail with only second and third fields into the body. I need also the first.

Is it possibile?
Thank you in advance

Custom fields should be included in the email body text with {AUTO_FIELDS}:

Custom label: {data:custom_field_name}