RingCentral - can't log in when PiHole active


I ran into a situation where I could not log in to RingCentral when Pi-hole was running. Turns out RingCentral uses a service that is presently blocked by the gravity list. The service depends on mpsnare.iesnare.com, which as of today seems to be blocked. I unblocked it and viola, I am able to log in to RingCentral again.

Hope this helps someone else!