alt Hacker NewsBut theres not even that going on.
Most of the problems people have spinning up their own email servers, like getting blacklisted by the big boys, are less bad societally than actually accepting and routing the quantity of spam they are blacklisting. Does it benefit them? Kind of. But its not anticompetitive in any real sense. These restrictions are obvious and basic. If you really wanted to, you could spend a significant, but in the grand scheme of things small, amount of money to break into the same game.
I mean theres a non zero chance that if Google, Microsoft and Amazon stopped being so damn picky, the government would turn around and regulate that they do exactly what they are doing now, to resist the plague of spam that would result.
Its like getting mad at Visa and Mastercard for insisting on the PCI DSS for people they transact with. If it wasn't mandated by Visa and Mastercard, it would become government regulation (and is already referenced by regulators in some jurisdictions)
"Ooooh no Visa is being anticompetitive making me secure my environment and prove that security to a trusted third party what a terrible monopoly they have".
You are missing the point.
The point is that they don't provide the level of services required by their position, which is dominant.
When you have a legitimate problem with Google, they don't reply to you. The news here is again an example of that. The only thing you can do is abide by their rules, which often requires you to subscribe to their services or be at their mercy.