I’d be wary of yandex

https://www.cvedetails.com/vulnerability-list/vendor_id-6851/Yandex.html

Yup.

Buy any domain name, doesn’t matter what. I pay 15 dollars a year for mine. https://gandi.net

https://mailu.io/2.0/ is pretty turnkey

https://github.com/docker-mailserver/docker-mailserver has a lot more customizability and you can chain together stuff like encryption, spam filtering, auto replies with an AI agent. However those are all other containers you’ll have to add into your environment.

https://jzweig.com/blog/setup-your-own-email-server-with-docker/ Is a really simple how to

Whatever you do, pay close attention to your SPF, DKIM and DMARC

https://www.howtogeek.com/devops/dkim-dmarc-and-spf-setting-up-email-security/

Edit: OP asked for free, secure, and doesn’t get taken down for inactivity. If you want to do that and pay as little as possible, with the most security, you’ll have to self host. Otherwise you should pay for the service, or deal with the data brokers that offer free email. In capitalism, unfortunately, there is no free lunch.

I think that’s why most of us are here on Lemmy. However I don’t want to assume the motives of others.

I think privacy and social media are inherently at odds. Social media is built around the concept of sharing personal metadata through memes, opinions and is generally the point of socializing. Your personal data is the currency of social media.

https://wiki.trinitydesktop.org/Trinity_Desktop_Environment

I would suggest starting here with whatever distro you’re most comfortable with

I still don’t see any bug report anyone can follow up on… I cannot trust OP’s experience until that’s linked here.

Another option would be to run windows in a VM