Email Downloadable Files as Attachments

Operating System: Ubuntu 20.04.6 LTS
Ghost-CLI version: 1.24.0
Ghost version: 5.49.1

A block of the users on this site do not have browsers on their computers. (Yup, you read that correctly!) Is there a way to send the downloadable files as attachments on the email when the post is published?

When we create a new primary file block with the PDF and then preview the post as an email, we see a direct link to the PDF. But when we send the email, the downloadable file links back to the post rather than the PDF itself and the PDF is not attached to the email.

Our goals would be for the PDF to be attached to the email.