Magnor

I was replying to the part where you said that “You can spin up your own email server tomorrow and start communicating with the world through the email protocol standards”. While I agree that this is technically possible, it has become increasingly difficult (see this blog post for example).

This is true but if you were to do that most people would simply not receive your emails. The fight against spam has effectively turned email into an oligopoly.

You can host your own instance, which will be federated with this one by default. Every little bit helps.