Domain/Email forwarding

Domain/Email forwarding

I setup a second domain to point to our primary domain.  I would like email to forward as well.  
mysiteabc.com forwards to myothersitexyz.com
I would like to have email that are sent to anyemail@ mysiteabc.com  to forward to anyemail@ myothersitexyz.com


I have both domains added to my zoho account and zoho hosts out email with the primary domain. 
Do I set that up with my Domain host or with Zoho Control Panel?