Once the user has selected the "Preview" icon, they will be able to edit the Email Subject, see the Recipients of the emails, the attachments that are linked to the email will also be available for download.
At this point the user can still edit the email template. Once they user has made any changes, they can select the "Approve" button to approve the email.
The user also has the option to send the email from this screen, or send it from the main listing view.