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Backups and self-hosting! These threads keep coming up where [Cloud service] deletes someone's data, bans their account, or otherwise denies service suddenly, and someone always asks "What [other cloud service] should I utterly rely on?" Maybe the answer is to not rely on cloud services to store the only copy of something precious or important to you.

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Any specific packages you recommend for setting up email?

I would think there is some docker container I can run in a VM and go about my business.

I have my own domain, and run exim+dovecot on a low spec Linux machine. This setup has run solidly for years. I serve E-mail for family and friends. When I first set it up, I had some deliverability problems, but once I had DKIM and SPF set up, it's been rock solid. No experience with containers or docker or any of that stuff, sorry.

I've used this for about a year, and it has been stable. Hosted on my home computer.

https://github.com/tomav/docker-mailserver

My emails get rejected from @comcast.net but nobody else as far as I can tell. I haven't figured out a good way to debug the issue. As a result, I am not completely off of free Gmail. If you need your emails to be 100% received on the other end, I would recommend paying a hosting provider.

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