How to Stop Unsolicited Notifications to Meeting participants?

How to Stop Unsolicited Notifications to Meeting participants?

Every time I Edit a Meeting (say, to add a participant) all the participants receive a pop-up notification as well as an email.  

I only just noticed this and some have already received at least 10 emails.  This is highly embarrassing In a professional situation - and does not reflect well on Zoho as that is where we have to lay the blame.

It would be great if we could say you have sorted the problem.

Lila