Yes, it’s just sway

I’d go for Alpine Linux in such case.

You may want to check out numen, targeted towards power-users.

Yep, people are enthusiastic about self hosting and like talking about what they host :)

When I am sending? Well, once things are set up properly I’m pretty confident that things arrive (though nobody can ever be 100% sure of course). I also tend to mail to the same recipient domains a lot, like for work and hobby projects, so once those are tested you get pretty confident.

Unnoticed downtime is usually quickly noticed, I depend on my server for a lot of things. Senders are often resilient enough to keep things in their queue and try a few times. There’s also a fallback MX registry at my (3rd party) DNS host which will queue stuff in case the primary MX goes down.

Nice, RSS is great indeed. I use it extensively as well, but I didn’t even realize it was a thing people ran as a service on a server. I hadn’t heard of FreshRSS etc. I personally just run newsboat from my desktop/laptop, even my phone if need be.

I’ve been self-hosting e-mail for over 15 years and hope to continue doing so. Although it’s being made increasingly difficult by big tech players. I wrote about it here: https://proycon.anaproy.nl/posts/rant-against-centralising-e-mail/