Hi Amol,
it looks like this apps highest compatibility is Mx 6.10.10
Try using the "E-mail module with templates”, https://appstore.home.mendix.com/link/app/259/
Thank you for your quick reply…… yea, that I can use which u suggested but the one i was looking has documented well by Mendix to be used… But Now, I will go with the module that u suggested….