Start a task from an email link

Hi All

I am working on version 24.3!

My scenario is, in the SITE provided to the users there is an Active Tasks page where user is shown the tasks as a link. On clicking the link; at the backend we have used a!startProcessLink() to start the appropriate Process Model with the required parameters. 

We send a customised mail to user using Send E-mail smart service whenever a task gets assigned to them. The user wants the functionality that in that customised email, a link is provided for the task such that on clicking the link a task gets opened just like it gets opened from the SITE. I understand that a!startProcessLink() actually returns a Reaction Tree which Appian internally reads when we call the a!startProcessLink().

Wanted to check is there a way to handle the same scenario from the email such that on clicking the link in the email; the corresponding process gets started in Appian just like it happens from the SITE.

Thanks in advance!!