This.
For hosting your private mail, you can use a cheap VPS service and use https://github.com/mailcow/mailcow-dockerized.

Truus

Nope. Not at all. Is all about how do you configure your MX and DNS, DMARC etc.
And I usually educate all my correspondence to move on from centralized email services like Google or MS.

Many of these also they host their own domain on to Gmail servers. The most stupid move ever.

DarthCoin

do you have problems with your own server, that corporate email services refuse your emails because they think it's spam? I've wanted to do this, but I always read scare stories that it puts you outside the sandbox the corporations play in, and won't let you join 

SwearyDoctor

Thanks Darth. I somehow missed this guide.

Monotone

bitcoin

What email service do you use and why?

You should always separate public from private
- for public shity spam/throwaway: protonmail with multiple aliases.
- for private use only: my own domain, hosted on my own server

Here I wrote a guide about these aspects:
https://darthcoin.substack.com/p/avoid-being-spammed
