Two support services, both using Zoho Desk, both configured to automatically send email on closing ticket .

These two services collaborate each other and each ticket closing corresponds to an opening ticket (or reopening closed ticket) on the other. How can we, at least on our part, configure Zoho to exclude sending the email of closed ticket only and exclusively to that recipient? Furthermore, how can we prevent our ticket from reopening automatically only and exclusively in the case of this type of email?

I hope I was clear. Thank you.