I'm still amused that back in October 2017, a commenter (lucb1e) argued[1] that I was exaggerating the difficulties of reliably sending email but a year later in 2019, he confirmed the same difficulties![2]
The discussions in that thread (May 2019) and today's HN thread (September 2019) contradicts author's claim that mail stopped being "hard" 10+ years ago:
>Another reason is because it used to be hard a long time ago. [...], citing the very real difficulties they faced over a decade ago,
Hosting your own email is certainly not impossible and lots of people are successfully doing it. (Or they they're actually not successful because their outgoing emails are sometimes getting silently spamholed without them realizing it.) In my case, I'd rather expend mental energy on other pursuits (machine learning, learning Swift language, etc) than constantly worrying about a personal email server's "reputation health" and then debugging whatever goes wrong.