@tfiebig@s@azedand2knots SMTP is fundamentally pretty amazing. It was carrier/transport agnostic, could handle incredible delays, and was always accountable for its actions and failures.
And then the assholes arrived. Spammers, and war against them started. SMTP was never designed with any of this in mind. In the name of anti-spam, all of its benefits have eroded away and left us with the shitshow we have today.
It also created the opportunity for the current hegemony of providers to seize control. By the time most noticed, it was too late.