I create a group in zoho mail. Then in zoho calendar I created a group calendar, added a group event, and chose that group in zoho mail to send the email notification to about the new event being added to the calendar.

This is the error I keep receiving and only I, the administrator, am receiving the notification that an even has been added. No one else gets the email notificaiton.

If I send a regular email to that email group it works fine and everyone receives it, however sending it through zoho calendar is not working. 

What needs to be done to fix this?