It's a bit unconventional maybe, but I vote simple-nixos-mailserver - IF you are curious / willing to learn nix. It's essentially just sanely configured dovecot, postfix, rspamd.
My config for those three combined is about 15 lines, and I have never had an issue with them. Slap on another 5-10 lines for Roundcube as a webmail client.
Since it's Nix, everything is declarative, so should SOMETHING happen to the server, you can be up and running again super quickly, with the exact same setup.
Yep, that's right. In theory you could share the encrypted DB with the public and not degrade security. (Still don't do that though...)
Fail2ban allows you set different actions for different infringements, as well as multiple ones. So in addition to being put in a "local" jail, the offending IP also gets added to the cloudflare rules (? Is that what its called?) via their API. It's a premade action called "cloudflare-token-multi"
We expose about a dozen services to the open web. Haven't bothered with something like Authentik yet, just strong passwords.
We use a solid OPNSense Firewall config with rather fine-grained permissions to allow/forbid traffic to the respective VMs, between the VMs, between VMs and the NAS, and so on.
We also have a wireguard tunnel to home for all the services that don't need to be available on the internet publicly. That one also allows access to the management interface of the firewall.
In OPNSense, you get quite good logging capabilities, should you suspect someone is trying to gain access, you'll be able to read it from there.
I am also considering setting up Prometheus and Grafana for all our services, which could point out some anomalies, though that would not be the main usecase.
Lastly, I also have a server at a hoster for some stuff that is not practical to host at home. The hoster provided a very rudimentary firewall, so I'm using that to only open necessary ports, and then Fail2Ban to insta-ban IPs for a week on the first offense. Have also set it up so they get banned on Cloudflare's side, so before another malicious request ever reaches me.
Have not had any issues, ever.
I am using both and this somehow made it to my phone, wtaf
When I first switched to nix, I made an error copy-pasting my hashed password into a secrets file.
Reninstalled the system 5 times, each time immediately locking myself out, almost
Managing ~35 machines without issues now though.
FWIW, Lidarr works the worst out of the arr stack for me too. I don't know if there's just not enough well indexed material in my sources or what, but yeah, not great.
If your entire experience with the arr stack has been Lidarr so far, give it another shot! Sonarr and Radarr work absolutely perfectly. It's just such a nice feeling to open Jellyfin (or I guess Plex) on the TV and go "oh nice new episode is out!"
I have been scrolling on the front page for a couple of minutes now, and I was going to write that it's literally all conspiracy theories, but that's not true, there's also some "sponsored" posts AKA ads sprinkled in.
What a sad joke.
If you think the fediverse is too centralized, you can always host your own instance. You get all the same "free speech" benefits (plus no free-speech ban on drugs and porn), without having to put one foot into that cesspit of a site.
Edit: oh, and that has to be the worst moderation system ever devised - at least if you are a woman or any kind of minority. Good fucking luck in finding a random jury of users who will ever, ever ban a racist or sexist piece of shit on a platform like this. Come to think of it, that's probably the idea and justification behind the system: being able to loudly proclaim "we have a democratized ban system ensuring moderator overreach is impossible!" does make a great dogwhistle for "you can be a terrible human on here, don't worry"
I recommend using Usenet for German stuff, all the private trackers I have tried in the past were... seedy.
Yes, you need to pay for access to the Usenet, but it's worth it for German language audio IMO.
Check out scenenzbs.com, no need to pay to search there. Check if everything you need is available, though likely, it will be.
I have not had a failed download yet.
Matrix does have stickers
As others have said, you can completely disable the stock launcher through ADB commands. At that point, if you hit home, you'll be asked which app to perform that action with. Select your launcher, click "Always", and done.
In that case I can really highly recommend it. Nixos on the server is fantastic anyways, and the only hurdle to recommending simple-nixos-mailserver is that most people are not familiar with nix... ๐