We're working on Spam Scanner because we weren't happy with rspamd nor SpamAssassin or any other archaic or non-trivial closed-door tech.
See https://spamscanner.net for more!
So many cases. Some are using this on hundreds of sub-domains. I hope to launch SMTP and regex support soon. Then... it has final form, power level over 9000.
Yeah, Google Translate via the npm package "mandarin" I made @ https://www.npmjs.com/package/mandarin. I planned to hire curators to go through the JSON files and clean it up - though I'm incredibly surprised that open source contributors have come forward (sometimes for their first time doing a PR) to submit fixes to locales. I give them free service for several years for their help.
I would not start this business if I could not keep it going. Period. Even beyond my lifetime. I keep things simple - when I started I had so many struggles, and wish something like this existed. I have contingency plans in place if something happens. My philosophy is outlined in the documentation for Lad.
I encourage you to instead try out https://forwardemail.net. I'm launching our browser extension and our SMTP service very soon. It's completely open-source and free. No logging either. We're the only service that doesn't write emails let alone logs to disk nor store any metadata.
You can use unlimited custom domains and create disposable aliases on the fly as well!