As it is there is no ability in Mintsoft to add email body to scheduled report sent to customers.
To develop such an addition would be a huge amount of work for the developers at Access.
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Idea to resolve Problem
My suggestion would be to use the MailGun Template system, generating the template in MailGun for the email body. All that would be required from MintSoft would be the ability to send an additional 'Template Name' field to the MailGun API. This would be a real quick addition for Mintsoft. Text Field Data -> Send to MailGun API call.
This is what I am looking for
+1 for this. Any form of custom identifier would be so useful!