Right, that's what I was referring to. See also XMPP. But at the end of the day, Google's goal is not to kill distributed email. The risk reward in terms of a

Right, that's what I was referring to. See also XMPP. But at the end of the day, Google's goal is not to kill distributed email. The risk reward in terms of anti-trust simply isn't there. The value from the data they get from onboarding accounts is already superscalar since they only need one recipient from each message in order to get the data. Therefore its fair to call it Embrace/Extend if we squint a bit, but there's no Extinguish play for Gmail (just collateral damage of spam control).