First, When I mentioned "The former requires a HTTPS server and the latter
requires DNSSEC.", I didn't mean DNSSEC is HARD to implement. I meant
DNSSEC is CONTROVERSIAL
Read some of these articles.
Second, unless top domains like Google, Facebook etc. start to use DNSSEC,
you are gonna see questions like this.
So if you wanna convince others to use DNSSEC, you should start with big
brothers like Google.
Third, Yes DNSSEC is HARD. Maybe not for you. [You seem like a person who
knows your stuff]
We are talking about mail servers here. Many of these users are non-tech
savvy users who depends on third-party mail hosting services like G-Suite.
As an engineer you can do those stuffs easily. But a doctor can't do that.
Just because he can't configure DNSSEC doesn't mean he don't deserve
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