Im wondering how this option actually works I mean 'Suppress forwarding of bounce messages' checkbox in Usermin mail filter?

Is it suppressing all NDR's or only those that originate from serwer where they should be forwarded?

I'm wondering if there is a method to set this option as enabled by default in usermin ?

I mean if someone creates Forwarding to different server using Forward Email Usermin Feature and/or in
Email Filters filter properties

So users have to explictly unselect this checkbox rather than selecting it?