Inbound email action, attach email to incident record

I have an Inbound email action to create an incident when an email with certain parameters is sent to the SNow instance. I would like to attach the email to the incident record instead of copying the body to the description. I understand that attachments to the email become attachments to the incident automatically, but I have not found a way to create an attachment from the email.

Any ideas?

Thank you
Michael Makris