As an administrator, I want to be able to set default values for user Email settings

This is for Confluence Cloud (6.0.0-OD-2016.12.4)

Problem Definition

A customer is trying to set up his Confluence instance so that every new user will by default have the Subscribe to new follower notifications checked as well as Autowatch and all the other settings unchecked. It is currently only possible to do so by asking each user to set these settings themselves in their Confluence profile email settings.

Suggested Solution

It would be great if an administrator could set the default values for the email settings in a Confluence user profile so that each new user will have these settings from the start (currently it is only possible to configure the recommended email updates).