Is there any way to block attempts by people from outside of our organization to chat with our users through Glip? We have our tenant restricted so that only admins can invite new users by setting up an account for them through the admin portal, but we've had people create free Glip accounts and then attempt to send messages to our users by using their email addresses.
When this happens, the admins on our tenant get an email saying "<email address> would like to be invited to RingCentral. Please go to the People page on RingCentral and click on the Invite People button at the top of the page to invite them."
There should really be an option to disable this - we will never want to allow outside people to access our messaging. We can disable SMS messaging with a switch; this should be a no brainer option.