Emails and Decentralized Protocols

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This post is more than a year old. Information may be outdated.

Email is now an oligopoly, a service gatekept by a few big companies which do not follow net neutrality principles.
Google has half a billion results for "my email goes directly to spam
email servers run bayesian filtering algorithms, which protect you, and most spam doesn't reach your inbox.
Big Tech deliberately nerfs email deliverability.
if you want to build services on top of the email, you have to pay for an email-sending API which others in the industry have blessed. One of them.

Deliverability may be troubled, but running your email server has never been easier. Struggling with postfix and dovecot configuration, semantics, and architecture isn't the only way to start using the email you control.
You don't have to postfix + dovecot in 2022.
An excellent recommendation from the original discussion on Hacker News was to use as an outgoing email server.