Have you ever heared requirement from customer to tracking email sent from main marketing module of vtiger like leads, contact or organization ?
We implemented feature in vTiger to track email sent out from this basic modules.
Image below shown email open with # of click on the link in the email body with last open and last clicked date.
Please review our extension from URL below.
URL : http://demo.variancecrm.com/index.php
Note : Please choose “Email tracking” from selected extension to check.
We will keep you posted with more implementation and configuration.