We have an internal check request form which requires supporting documentation. The majority of the time that documentation is an email from someone outside of the organization. For auditing purposes, we need to attach the email to the request. I am not seeing how we can even use the upload function to copy and paste the information from the email into the field (it says there are illegal characters, presumably from the @ sign in the email address, which we would need to show). Are there any options here?