I’d like to highlight this comment on HN:
> I agree with the pains, but the options are not juts Big Tech or self-hosting. There's a myriad of not-big-tech email providers out there, for example there's Posteo, who use open source software and green energy. They are going strong for 13 years now with 400+k accounts.
>
> https://en.wikipedia.org/wiki/Posteo
Please consider this option if you’re fed up with self-hosting e-mail. We need a diverse ecosystem.