How to Edit the classic email template
Login to your account.
Click on the menu:
Click on Interviews then View all interviews
From this page a list of interviews is displayed. Click on the interview title you want to invite candidates to. This will bring you to the dashboard for the interview.
Click on the email template button
In the open text area you can copy the details into the email program of your choosing and edit them to suit your needs. Press Finish to go back to the dashboard view.
Send the custom email invite manually through you favourite email application