Your comments

Definitely needed!

I cannot stress enough, when you have a team that creates forums for many things, getting an email every time forced me to turn off email notifications altogether (which is really not a solution)

I agree with OP, there needs to be an admin setting to change the default, i wouldnt agree with globally (all ryver teams) being forced into off position though.

Why not just CNAME from ryver.yourdomain.com -> yourteam.ryver.com?

I have used something similar for my other comms platform