Yes. Within the Reports component of Settings, there is a section called "Email templates" where you can customize the emails that are sent out with reports.
If you are an administrator or account owner, this can be accessed through Settings > Reports.
Select "New template" and edit the fields using as required.
Once you have edited the template you can "Preview" and "Save" the template.
Multiple templates can be created and tailored to your organization, then a specific template can be chosen when scheduling a report.
Note: The customized email templates DO NOT relate to the default reports sent for Quality Assurance. They are only available when scheduling reports through the Reports component.