Using forms to attach images directly to email

I am working on a site, using the submission form as a singular point to submit posts to four separate blogs.

Since there is no rich text input area, I am having the users attach a photo, along with a text document for their excerpt. I then send an email back to them with the image and document they submitted, along with the rest of the form.

Is there any way I can modify Gravity so it attaches the files to the email, instead of just putting things into the upload folder, and linking back with a full, unprotected path to the rest of the submissions that have been made. I know I can block the folder entirely with .htaccess, but the blog maintainers need external access to these images as well.

Thanks -
Nick