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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
479•klaussilveira•7h ago•120 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
818•xnx•12h ago•490 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
40•matheusalmeida•1d ago•3 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
161•isitcontent•7h ago•18 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
158•dmpetrov•8h ago•69 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
96•jnord•3d ago•13 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
53•quibono•4d ago•7 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
211•eljojo•10h ago•135 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
264•vecti•9h ago•125 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
332•aktau•14h ago•158 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
328•ostacke•13h ago•86 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
415•todsacerdoti•15h ago•220 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
27•kmm•4d ago•1 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
344•lstoll•13h ago•245 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
5•romes•4d ago•1 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
53•phreda4•7h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
202•i5heu•10h ago•148 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
116•vmatsiiako•12h ago•38 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
153•limoce•3d ago•79 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
248•surprisetalk•3d ago•32 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
28•gfortaine•5h ago•4 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1004•cdrnsf•16h ago•421 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
49•rescrv•15h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
74•ray__•4h ago•35 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
38•lebovic•1d ago•11 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
78•antves•1d ago•59 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
32•betamark•14h ago•28 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
41•nwparker•1d ago•11 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
8•gmays•2h ago•2 comments

Claude Opus 4.6

https://www.anthropic.com/news/claude-opus-4-6
2275•HellsMaddy•1d ago•981 comments
Open in hackernews

Thunderbird Pro August 2025 Update

https://blog.thunderbird.net/2025/08/tbpro-august-2025-update/
166•mnmalst•5mo ago

Comments

mnmalst•5mo ago
> These services come with real costs, especially storage and bandwidth. Charging for them helps ensure that users who benefit from these tools help cover their cost, instead of donors footing the bill.

This is the best way to monetize the extra sevices imo.

Animats•5mo ago
I don't want their extra services. Just a local email client. I already have servers. Do not want to have to have a "Thunderbird account" in the "cloud", with overreaching terms of service and privacy terms that weaken over time.

Mozilla tried this with "Pocket", then gave up. But as part of Pocket integration, Firefox bookmarks were made less useful. Wonder what will be enshittified in Thunderbird to force people to the "pro" services.

jraph•5mo ago
I'm sure you can still go on without the extra services, and you can still donate if you want to.

I see no reason for Thunderbird to be enshitified.

Thunderbird is also not Mozilla anymore.

mnmalst•5mo ago
I agree fully but Thunderbird is operated by MZLA Technologies Corporation, which is a wholly owned subsidiary of the Mozilla Foundation, so while Thunderbird is part of the broader Mozilla family, it operates independently and is managed as its own entity.

They left Mozilla at some point but later joined again.

godelski•5mo ago
And?
jraph•5mo ago
And they are still technically somewhat Mozilla indeed (but note this commenter wrote they fully agree with my comment)
godelski•5mo ago
Ok? And being Mozilla is a problem why? And what is the alternative and why?
mnmalst•5mo ago
Where did I imply it's a problem? I merely corrected the answer above me which claimed they are "NOT Mozilla anymore".
jraph•5mo ago
Please reread carefully. There's actually no disagreement here. You are being too confrontational. I understand why you could be, but you can relax here.
jraph•5mo ago
Your reply is dead. None of us two are doing what you say. I'm not hating anybody or anything here, and stating it even less.

There must be some big misunderstanding here.

The other commenter only corrected something I wrote that was technically wrong and I read their comment as quite neutral. And my initial comment was an answer to what actually felt undeserved and misplaced hate. I was pushing back hate.

mnmalst•5mo ago
Yes and that's exactly why they are additional services.
rangerelf•5mo ago
It's like you didn't read the article.

They address exactly that gripe at the end.

godelski•5mo ago

  > at the end
Also in the beginning and in the middle.
godelski•5mo ago
So don't use/pay for them? Stop manufacturing outrage.

The article is littered with phrases like "optional", "opt-in", "self-host", "For users who prefer to run their own infrastructure", "completely optional suite of (open source) services". How more blatant can they get? Even if your eyes passed over the words I won't believe you if you told me you read the article. It's not reading if you are missing a point that is excessively being shoved in your face.

godelski•5mo ago
Funny enough, I'm hitting a 504 when trying to read the article. (Maybe not cached?)

For others: https://archive.is/20250822144210/https://blog.thunderbird.n...

defraudbah•5mo ago
gateway timeout :\
nalinidash•5mo ago
site down, archive link: https://web.archive.org/web/20250822103720/https://blog.thun...
mnmalst•5mo ago
Site works for me but a backup link can't hurt.
newscracker•5mo ago
Here’s the link for anyone wanting to join the waitlist for Thundermail (the service):

https://www.thundermail.com/

I really hope this takes off well and provides some funding for the Thunderbird project too. Currently the only way to monetarily support Thunderbird is through donations (https://www.thunderbird.net/en-US/donate/ ).

jannes•5mo ago
> [...] support Thunderbird is through donations

I doubt donations to MZLA Technologies Corporation will reach the Thunderbird project in any meaningful way.

They'll just use it to pay their executive salaries.

josteink•5mo ago
Or support radical activist groups unrelated to software or technology.

Absolutely bonkers.

paulryanrogers•5mo ago
Like?
josteink•5mo ago
Source: https://lunduke.locals.com/post/4387539/firefox-money-invest...

I know people here don’t like Bryan Lunduke, but besides the opinions added, this is factual, sourced reporting.

omnimus•5mo ago
That kinda proves they would spend it on executive salaries. As the spend on "radical groups" in the article is almost nothing compared to salaries of their management.
josteink•5mo ago
This article is from 2023. Recent years they’ve gone into decolonisation, Marxism, anti-capitalism and afro-centrism as well, just to mention a few.

No doubt though that the increase in executive salaries has been way beyond criticism as well.

Their finances seems a total mess and completely hijacked.

wsmwk•5mo ago
Perhaps factual - I can't say.

But it's a different company. EOM.

wsmwk•5mo ago
> I doubt donations to MZLA Technologies Corporation will reach the Thunderbird project in any meaningful way.

You are basing this statement on what data?

https://www.thunderbird.net/en-US/donate is managed by MZLA, it has one open source product, Thunderbird. We pay a required Thunderbird trademark fee to the Mozilla Foundation and little more than that, which is captured in https://stats.thunderbird.net/#financials.

alecsm•5mo ago
> The upcoming email hosting service from Thunderbird will support IMAP, SMTP and JMAP out of the box

Is there any email hosting out there with support for JMAP?

alibrarydweller•5mo ago
Fastmail has had it for a while.
TkTech•5mo ago
I'd hope so, they kinda made it :)
newscracker•5mo ago
AFAIK, only Fastmail (which was the creator of JMAP).
sevkih•5mo ago
Also https://stalw.art/
abound•5mo ago
Stalwart is a mail server program, not a live email server you can pay someone money to use.

One can of course use Stalwart to run a hosted email service.

sevkih•5mo ago
https://stalw.art/managed-email/

> Let us handle the complexities of your email infrastructure with our comprehensive managed email server service.

abound•5mo ago
That's fair! I didn't know they were offering that. I think it's a recent development -- it's not generally available ("contact us"), and it seems more focused at enterprise-type deployments than end-user mail that your typical Fastmail/Protonmail/etc.

But for the original question:

> Is there any email hosting out there with support for JMAP?

Stalwart really isn't a practical answer, at least yet.

lb_•5mo ago
Thundermail uses Stalwart
PopAlongKid•5mo ago
I much prefer POP, as I only send and receive emails on my desktop computer and I want to decide when I fetch new emails. Is there any way to make IMAP work more like POP?
Jaxan•5mo ago
Just disable any automatic fetching. IMAP is not pushing mails to you, but the client regularly pulls.
homebrewer•5mo ago
fdm, imapsync, lots of similar alternatives. Synchronize email to your machine and then use any MUA, or even several of them, to read it from a local directory (Thunderbird also works AFAIK).

They can also remove email from the remote and keep just the local copy. Pretty much 1:1 with POP. I've been using this setup (with fdm) for probably more than a decade.

sylens•5mo ago
I would hope this starts building momentum outside of Fastmail and maybe we see support added to clients like Apple Mail
yogorenapan•5mo ago
I find this totally reasonable. I think it's a good way to fund open source. I just hope this doesn't create any perverse incentives to make self hosting harder than necessary
perihelions•5mo ago
Previous thread on the initial product announcement,

https://news.ycombinator.com/item?id=43560885 ("Mozilla launching “Thundermail” email service to take on Gmail, Microsoft 365 (techradar.com)"—4 months ago, 341 comments)

NoSalt•5mo ago
I'm hoping this doesn't mean that "regular" Thunderbird will be phased out. :-/
MissTake•5mo ago
This is about the Thundermail service - not the email client.
ilvez•5mo ago
Adding these additional subscription services will never compromise the features, stability or functionality our users are accustomed to in the free Thunderbird desktop and mobile applications. These services come with real costs, especially storage and bandwidth. Charging for them helps ensure that users who benefit from these tools help cover their cost, instead of donors footing the bill.
TiredOfLife•5mo ago
> Adding these additional subscription services will never compromise the features, stability or functionality our users are accustomed to in the free Thunderbird desktop and mobile applications.

Has this been true ever?

sunaookami•5mo ago
Any info on pricing for Thundermail?
mnmalst•5mo ago
I haven't seen any information on that.
nik736•5mo ago
I am still waiting for the announced redesign in 2022 [0] :-)

[0]: https://www.omglinux.com/major-thunderbird-redesign-early-lo...

lol768•5mo ago
It's such a shame that what was shipped there was so far off what the designs had suggested might be possible [1]

Two years ago we were told:

> We're going to build it right, and that means rewriting large pieces of our codebase. We'll ship the remaining stuff when they are ready.

I'm not sure how much more of the designs have actually been realised since then?

[1] https://news.ycombinator.com/item?id=36664515

andrepd•5mo ago
> No menus

> Cryptic icons with no text

> Optimised for looking good on a screenshot and not for actual user interaction

No thanks :)

mixmastamyk•5mo ago
Indeed, and 16:9 monitors are passé already.
bee_rider•5mo ago
Someone should really make a UI where three black lines is a skewmorphic grippy surface (like you see on steps sometimes) to move the window around, just to mess with the hamburger menu devotees.
jacobgkau•5mo ago
It's mostly already available, just not the default: https://blog.thunderbird.net/2023/08/make-thunderbird-yours-...

I followed the steps in that blog post and was able to mostly get there. I have a bit less padding between folders than the mock-up showed (which seems like a theme thing rather than a configuration item), and I don't have profile pictures in the message list.

rollcat•5mo ago
I really wish we could make uniformity a trend again. GTK has basically made it a rule that applications must do whatever the heck they want.

Then next day I'm using Inkscape on a Mac. Cmd-A on the canvas selects all elements. Cmd-A in a text field selects all elements on the canvas - and whatever text was in the field, now applies to the selection, so I start typing and instantly get garbage.

How do you Select All in a text field? Ctrl-A of course! - On the only system that has a non-broken copy/paste in the terminal.

I guess props to Thunderbird for leaving some space on the title bar to drag the window around? Do not take it for granted.

jraph•5mo ago
Thunderbird is technically rendered with GTK on Linux, but is mostly written using web tech. They are mostly not GTK, I'm don't think GTK is even involved on Windows for instance (don't know about Mac). For this reason, I doubt they will follow everything gtk Gnome does.
seemaze•5mo ago
Great to see Thunderbird sponsoring the previous fork of Firefox Send[0]. I employed that for a short time and thoroughly enjoyed it!

[0] https://gitlab.com/timvisee/send

viscountchocula•5mo ago
I wonder if there's a plan to prevent the spam/malware/csam issues of the previous iteration of Send. Maybe that it's a paid service will help stop that?
Pxtl•5mo ago
I hope we'll see them set up as an Identity Provider for oAUTH/SAML/OpenID/whatever other stupid plethora of single-sign-on protocols there are. It's disappointing to always see Facebook and Google for single-sign-on providers, never a privacy-respecting OSS org.
clickety_clack•5mo ago
The @thundermail.com domain name is pretty solid. The domain name is an underrated aspect of email services IMO.
kayson•5mo ago
The Thunderbird Pro Add-on Repo [1] doesn't really make it clear - if I want to self host Appointment and Send, do I need to build the addon myself and change the endpoints? Or is there some kind of config?

1. https://github.com/thunderbird/tbpro-add-on

sherr•5mo ago
I've used Thunderbird ever since it was released as a standalone mail client and like it - although it has sometimes been a rocky experience in the past. I use it now with Fastmail as my mail provider.

One thing I might be interested in is the "contacts" side of mail. In an effort to move away from too much Google, I ditched Google Contacts and host my own CardDAV using "Radicale" [0]. This works, and I also access it via DAVx on Android.

But would a CardDAV server be something worthwhile via Thundermail? Or perhaps too small a service itself? Maybe part of their scheduling tool "Appointment"? I might prefer having this hosted elsewhere than in my house.

[0] https://radicale.org/v3.html

pjerem•5mo ago
Is there a reason why you don’t use FastMail’s CalDav server ?

https://www.fastmail.help/hc/en-us/articles/1500000278342-Se...

josteink•5mo ago
And CardDAV too:

https://www.fastmail.com/blog/carddav-your-contacts-everywhe...

sherr•5mo ago
I had to think to recall the reason. I had a support ticket at Fastmail about this in 2024 - I wanted to host my own CardDAV server and have Fastmail use and sync to this. This was not possible - I was told that two-way sync with other services was a "calendar only feature". I might re-visit.
uncircle•5mo ago
Do you like Thunderbird better than Fastmail’s UI?

I’ve always felt TB to be clunky, outdated with an ecosystem of abandoned extensions that haven’t been updated since GMail got popular, but I haven’t tried it in the last 3 years to see if it got better.

wakawaka28•5mo ago
If you want to have your email offline, you must use an application built for that. Thunderbird has its shortcomings but it does actually do the job. Web user interfaces have their place (such as on phones, which make development harder), but there is no replacing the desktop email client.
uncircle•5mo ago
Fair, though in this day and age I find being offline is quite a rare event, and when it happens (I’m driving in the middle of nowhere), I don’t need my emails.

I’ll give TB another try. Web apps always feel terrible.

wakawaka28•5mo ago
It's not about being away from the internet (for me), it's about keeping my data on my own machine. I'm still trying to figure out how to delete everything from the server and still have my own copy. But that is kind of a niche requirement these days. It's better for everything to stay available on the server, usually.
lquidfire•5mo ago
> The upcoming email hosting service from Thunderbird will support IMAP, SMTP and JMAP out of the box

Ahh, will Thunderbird finally see full JMAP support? Hooray!

For the self-hosters (other than those using Stallwart):

Cyrus does, of course, support JMAP (it's what Fastmail uses); Dovecot has apparently no interest / no manpower to really implement it themselves, but are willing to take a contribution[0].

One day I am going to configure Cyrus just for JMAP.

[0]: https://dovecot.org/mailman3/archives/list/dovecot@dovecot.o...

sylens•5mo ago
Is this the first confirmation we have that the Thunderbird app will be getting JMAP support since Thundermail will support it?
godelski•5mo ago
I actually really like this. Seems like a good way to sustain the platform. Everything is free and open source, so you can run all the services on your own if you want, but allows users to pay to outsource that work and get direct support. Sounds a lot like the Red Hat model, which has been successful. I also *absolutely love* how transparent they are about future development. It's nice to hear about what features are being prioritized and what are still in the planning phase. I wish this was more common.

I like that everything is optional. Nothing is forced on people. I know Mozilla gets these complaints a lot and while there is some validity to them it's not like this also isn't true about any other platform... Plus, most complaints are about optional things...

I'd love to see integration with Relay[0]. I already use this as it is a big help to reduce spam. Integrate with bitwarden and I can give every website a unique email and password. I hate that this is a thing that needs be done, but it is a big help and worth 2 beers a year.

I've actually always been surprised more people don't use Thunderbird. It's got problems, but I've had fewer problems with it than GMail, Apple Mail, or Outlook. Some "features" on those platforms even feel hostile[1]. Hell, just the filtering capabilities make a massive improvement[1]. I mean there's of junk mail I catch this way that none of the other services do. I'm all for advanced spam filtering but come on, if I can catch it with "[To or CC] + [contains] + [<name>]" then you've done fucked up[3].

[0] https://relay.firefox.com/

[1] I never understood how people fall for those Paypal bitcoin scams until I saw one of those emails on my iPhone (and then checked Apple Mail to see if it was the same). Straight up rendered the PDF in browser giving no indication that it was a PDF and not text (GMail doesn't do this). I mean I don't have a Paypal account but I could see how my grandma could fall for that. Plus, they hide the addresses where in thunderbird this is much more apparent.

[2] One favorite filter is those "logged in from a new device". I get the toast notification on my machine (which I want) but it gets pushed to another folder so doesn't litter my inbox. Similar idea for other things like newsletters and email that borderlines junk (or is literal junk and hard to capture).

[3] These are LLM generated emails where the source is drastically different from what renders. Google support just told me to click "Report Spam" despite me telling them I've been doing that for a year and get these emails a few times a month...