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Show HN: Mailcow/Rspamd kept missing obvious spam so I built my own email filter

https://email-filter.ai/
1•rodoni•1h ago
Hi HN,

I run a managed MailCow instance that keeps letting embarrassingly obvious spam land in my inbox. Even after spending several sessions trying to figure out what was wrong, I couldn't fix it (maybe our team is just too small to train the filter properly).

So, I decided to build a simple tool that runs an LLM prompt over each email to filter it into the correct category. Over the Christmas holidays, I finally found the time to polish it up for a release.

The main differentiator compared to other email organizers is that you can write your own prompts for each category and connect your own custom LLM endpoint. I would love your feedback on the website and the overall concept.

I'm also a bit inspired by @rozenmd and his uptime monitor (OnlineOrNot), which proved that an idea doesn't have to be super complicated if you stick with it.

What do you think about the idea and the website? Do you see any potential pitfalls or missing features? Does someone have a clever idea how I could handle the management of the email passwords?

Wishing you a great start to the new year!

The tool is: https://email-filter.ai

An LLM-Driven Multi-Agent Framework for Telescope Proposal Peer Review

https://arxiv.org/abs/2512.24754
1•TMEHpodcast•5m ago•0 comments

Instagram boss says the platform's polished feed is 'dead' thanks to AI

https://www.businessinsider.com/instagram-head-ai-images-polished-feed-dead-adam-mosseri-2026-1
1•pseudolus•6m ago•0 comments

The Accountability Trap: Why School Systems Abandon Gifted Students

https://wendyx3.substack.com/p/the-accountability-trap-why-school
1•barry-cotter•7m ago•0 comments

We've made an Open Source video platform

https://www.boostervideos.net
1•machimilah•7m ago•1 comments

Critique of Techno-Feudal Reason (2023) [pdf]

https://eclass.uoa.gr/modules/document/file.php/ECON969/Evgeny%20Morozov%20-%20Critique%20of%20Ne...
1•wslh•8m ago•0 comments

Destroying x86_64 instruction decoders with differential fuzzing

https://blog.trailofbits.com/2019/10/31/destroying-x86_64-instruction-decoders-with-differential-...
1•fanf2•8m ago•0 comments

Games in PostScript [pdf]

https://seriot.ch/ps_talk/gambiconf.pdf
1•beefburger•9m ago•0 comments

Brazil's largest lottery prize ever delayed due to 125k bets per second

https://manualdousuario.net/en/brazils-largest-lottery-prize-ever-postponed/
1•rpgbr•10m ago•0 comments

The NYC subway station chosen for Mamdani's swearing-in

https://www.npr.org/2025/12/31/nx-s1-5662726/mamdani-nyc-subway-station-history
1•wslh•11m ago•0 comments

Snoop Project Update (search for usernames on 5k websites)

https://github.com/snooppr/snoop/blob/master/README.en.md
1•zaharqoops•12m ago•0 comments

A Declaration of Interdependence

https://github.com/experimental-123/doi-2026
1•engiserstakr•13m ago•0 comments

Clojure: Transducers

https://clojure.org/reference/transducers
1•tosh•16m ago•0 comments

Real-life experiment shows Bohr was right in theoretical debate with Einstein

https://phys.org/news/2025-12-real-life-niels-bohr-theoretical.html
2•pseudolus•16m ago•0 comments

Meta made scam ads harder to find instead of removing them

https://sherwood.news/tech/rather-than-fully-cracking-down-on-scam-ads-meta-worked-to-make-them-h...
3•wtcactus•21m ago•0 comments

China's first real gaming GPU is here, benchmarks are brutal

https://www.howtogeek.com/are-chinese-gpus-coming-to-eat-nvidias-lunch/
3•msolujic•22m ago•0 comments

The Graphics Chip Chronicles

https://www.electronicdesign.com/graphics-chip-chronicles
2•jnord•25m ago•0 comments

Nvidia to buy AI21 Labs for $3B

https://www.reuters.com/business/nvidia-advanced-talks-buy-israels-ai21-labs-up-3-billion-report-...
2•warthog•26m ago•0 comments

Scientists Create Robotic Rabbits to Fight Invasive Burmese Pythons in Florida

https://scienceclock.com/robotic-rabbits-invasive-burmese-pythons-florida/
2•sylvainkalache•27m ago•0 comments

Veritasium: The Ridiculous Engineering of ASML Machine [video]

https://www.youtube.com/watch?v=MiUHjLxm3V0
1•sbt567•33m ago•0 comments

Fixing a Buffer Overflow in Unix v4 Like It's 1973

https://sigma-star.at/blog/2025/12/unix-v4-buffer-overflow/
1•birdculture•33m ago•0 comments

CCC&T – Cosmic ray, the Climate Catastrophe and Trains [video]

https://media.ccc.de/v/39c3-ccc-t-cosmic-ray-the-climate-catastrophe-and-trains
1•doener•42m ago•0 comments

The Dying Art of Being a Bum

https://shagbark.substack.com/p/the-dying-art-of-being-a-bum
2•bookofjoe•43m ago•0 comments

OmniFlowAI

1•aiyetanm•44m ago•1 comments

Coding Dissent: Art, Technology, and Tactical Media [video]

https://media.ccc.de/v/39c3-coding-dissent-art-technology-and-tactical-media
1•doener•44m ago•0 comments

Show HN: Gradient – A 1-click mood journal for 2026, running locally

https://gradientjournal.co/
2•ashahab28•44m ago•0 comments

Show HN: I built a Python wrapper to query Uniswap v3 directly

https://github.com/qoery-com/qoery-py
1•SamTinnerholm•44m ago•0 comments

To sign or not to sign: Practical vulnerabilities in GPG and friends [video]

https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i
1•doener•45m ago•0 comments

CES 2026: Where enthusiasm meets reality and technology proves its worth

https://comuniq.xyz/post?t=673
1•01-_-•46m ago•0 comments

Equal Length Words

https://susam.net/eql.html
2•susam•52m ago•0 comments

Computer use or tool calling – what's best for real world work agents?

1•akshat77•58m ago•1 comments