Assigning Tasks to external user

Assigning Tasks to external user

Hello,

I want to assign task to one of my user and send a notification to the personnel on zoho as well as their personal email. How can I achieve the same? I am on the free mail plan.

i have created an id for the user within the free plan and assigning the the task to them. But since I am on a free plan mail forwarding is not possible and aliases of external domains are not allowed as well. 

Any suggestions for a workaround?

Thanks,
Anand