Email history module helps the user to view the history of emails sent for the Form which is shared by the users in email. If the user clicks on email history, the page will be redirected to email history page. And it contains all the history of sent emails will be displayed in the form of a grid. In this grid, if the user checks the checkbox column for the record. Click on the send remainder button present above the grid, then the remainder mail will be sent to those emails.