disable share request with organizations

[Sid Yadav]

I want to disable or make default so that when someone in an organization sends a request in, everyone in the organization doesn't get an email notification. I know they can manually change it, but I want it to either not be there at all, or default to private.

I have tried to disable it through Project Settings>Customer Notifications>Organization added (disabled)

yet that hasn't worked. Is there a step I'm missing or the setting haven't been saved and implemented?

[Shawn Masters]

We werent able to get it to work without hitting the entire Org as well. We ended up getting rid of the Orgs due to user complaints of spam mail.