Option to select if the user will or won't receive emails by default

There are some users that I don't want GLPI to receive emails.

I know there's the option to disable the follow up in each ticket. But I'd like to set it up on users by default.

For example:

The event monitoring system that opens tickets in GLPI by email doesn't need to receive updates about the ticket progress since it's not even a person.

This happens less often but there are some users that don't want and don't need to receive the emails from the Service Desk software.

Currently, I need to deactivate it every time in each ticket. However, when we receive more than 20 or 30 tickets of this kind (events monitoring system) it's inhuman to do it always.