52 comments

  • vamega 25 minutes ago

    I really hope Fastmail implements the JMAP spec for calendars and contacts soon. They’ve had the mail part of the spec implemented for a while, but it still requires CardDAV/CalDAV for contacts and calendar access.

  • NoboruWataya 12 minutes ago

    > They are robust, widely adopted, and battle-tested. Yet, their XML-based design is notoriously verbose, inconsistent, and difficult to implement correctly. Information is scattered across HTTP headers, XML payloads, and even embedded iCalendar data, creating endless compatibility and interoperability challenges between clients and servers.

    Can others confirm if these problems are widespread? I get that these protocols are probably a pain to develop for but given they are "robust, widely adopted and battle-tested" it seems that is probably a solved problem. It's better to have one standard that is used everywhere than to have to choose between two standards.

  • 9dev 3 hours ago

    While JMAP seems to scratch every itch of a sucker for proper web API design, I’m wondering if the design space for new protocols should really be constrained to layers on top of HTTP. Is there really any new-ish binary protocol these days? Stuff like file sharing or groupware, mail, calendars, and so on—these things could be a lot more efficient and don’t really need the overhead of JSON as the message interchange format, IMHO. Then again, a lot of solid thinking went into these things, so there probably are a lot of good reasons that I’m not aware of.

    Still, it’s an interesting space, I think.

    • WorldMaker 2 hours ago

      > binary protocol

      Email was never a binary protocol. Notoriously so, it's why MIME types and MIME encodings get so complicated.

      Most of the "old internet" protocols (email, FTP, even HTTP itself) were bootstrapped on top of built-mostly-for-plaintext Telnet. HTTP as the new telnet has a bunch of improvements when it comes to binary data, request/response-based data flows, and some other considerations. HTTP/3 is even inherently a binary protocol, it's lack of "telnet-compatibility" one of the concerns about switching the majority of the web to it.

      vCard/vCal/iCard/iCal were also deeply "plaintext formats". JSON is an improvement because it is more structured, even more efficient, than those predecessors. JSON may not look efficient, but it compresses extremely well and can be quite efficient in gzip and Brotli streams.

      I feel like "JSON over HTTP" is a subtle improvement over "custom text formats over telnet", even if it doesn't sound like "binary protocol efficiency" at first glance. Especially as HTTP/3 pushes HTTP more efficient and more "binary", and arguably "more fundamental/basic" with HTTP/3 even taking over more roles in the TCP/UDP layer of the internet stack. (Telnet would never try to replace TCP.) HTTP isn't the worst bootstrap layer the internet could use to build new protocols and apps on top of. Sure, it would be neat to see more variety and experiments outside of the HTTP stack, too, but HTTP is too useful at this point not to build a bunch of things on top of it instead of as their own from-scratch protocol.

      • p_l 2 hours ago

        A lot of the textual nature of older IETF protocols, including the CR LF line endigns, can be probably traced to how easy it was to bang out a bad implementation full of subtle problems that could be debugged by sitting an undergrad student at a teletype instead of spending time on having some binary serializer (that telecom companies definitely had money for)

        • JoshTriplett 2 hours ago

          Yeah, a fair bit of email protocol reeks of "is this tolerant of `telnet mailserver 25` and whatever garbage that might produce".

          • p_l 2 hours ago

            A lot of old RFCs explicitly mention running on top of TELNET.

            Additionally, as much people like to harp about "telcos focusing on connection-oriented protocols while we ran loops around them with packets", the reality is that NCP and later TCP pretty much focused on emulating serial lines around, and one of the earliest ways to access ARPAnet outside of machines directly on it was through calling into a TIP which set up bidirectional stream from your modem to a port on some host.

        • cyberax an hour ago

          It's also a reflection of the state-of-the-art at the time. Binary protocols were an unmitigated disaster, with standards bodies thinking that applying to the ISO for your organizational ID is a perfectly fine step that anyone does anyway.

      • p_l 2 hours ago

        Another point is that the use of HTTP for everything, outside of the issue of middle boxes breaking protocols for everyone, is that it's essentially capitulation to the wisdom of OSI multi-layered protocols - we replicate their feature sets by reusing bits and pieces of HTTP spec all the time.

    • wmf an hour ago

      I wonder if you could transparently upgrade to CBOR over HTTP/2.

  • sylens 2 hours ago

    We need better client support for JMAP. Apple Mail, Thunderbird, Outlook (as if), and so on. I'm surprised some of the smaller ones like Canary or Spark don't implement it as a product differentiator.

    • woodruffw an hour ago

      Serious question: what’s the differentiator if major email providers don’t support it?

      (This should not be interpreted as a defense of IMAP.)

      • sylens an hour ago

        Fastmail supports it, and it sounds like Thundermail will too

      • dijit an hour ago

        I'd make a reasonable guess that it enables much better Javascript clients, either via Electron or the Web Browser.

        You don't need major providers to support it, they support SMTP and that's how messages are relayed. JMAP is just so you: the client, can fetch your mail from wherever you host your mail.

    • Eric_WVGG 33 minutes ago

      We need better server support first.

      I’ve got a friend who’s been pitching me on building a new email client for years. “I’ll do it if we exclusively use JMAP.” “okay does that include Gmail and Apple/iCloud accounts?” “Nope.”

      I could sort of see dual-supporting Gmail's proprietary API and JMAP, but unless the #2-5 competitors support it… what’s the point? (sorry to put on the pessimism hat)

  • apitman 19 minutes ago

    I didn't realize JMAP had a file system protocol. I'd be very interested to learn how it compares to Solid.

  • btown 2 hours ago

    For those needing to deal with customers/clients/internal teams with Google Workspace/Outlook and wanting JMAP-style (though not JMAP) modern JSON APIs, Nylas might be a viable option: https://www.nylas.com/

    Nylas pricing has gotten better recently, but is still quite high though - at $1.50/connected account/month at scale, it's likely material to your per-user margin if it's part of your SaaS offering.

    But if you have a use case where this is a no-brainer (like capturing/analyzing/building custom real-time UI around your internal sales team's emails) then it's remarkably powerful.

  • lifty 3 hours ago

    It’s such a breeze to self-host your own email server using Stalwart. It has been a new era for email self-hosters like myself since these kind of fully integrated email servers like Stalwart appeared. Another good one but not as actively maintained is Maddy.

    • drdaeman 2 hours ago

      I'm setting up Stalwart right now, migrating from my current Maddy+Postfix+Dovecot+Rspamd setup. Not exactly my experience.

      The documentation is not great - I'd say it's just about barely enough to get an overall idea, but there's no one proper single definitive overview of what options exist, what are their possible values, what are the defaults, and how they relate to each other. Maddy docs, despite looking a bit sloppy, were a lot easier to get through. IMHO Stalwart makes it unnecessarily difficult to write a non-minimal static configuration file, hooking everything up correctly.

      To be fair, maybe there is a page like that but I haven't found it, despite trying.

      I know the Web UI allows to do the configuration by clicking through the forms, but this approach conflicts with declarative deployment practices. In my case it's giving me nondescript 500 errors in the UI with "Failed to write local configuration" in the logs because the .toml file is read-only.

      • audelair an hour ago

        Not sure if yours is setup different, but there are several key fields that need to be written to the config.toml file, and I've seen my file get updated when I make changes to the listeners or stores settings.

        But in general, I agree that it has not been a very smooth experience. Having messed around with maddy and mox, Stalwart has had quite a few gotchas. Despite being a single binary promising simplicity, I'm finding it to be a real challenge figuring out how it all fits together, and I'm mostly learning by trial and error since the documentation is often outdated.

        My biggest gripe is that it doesn't use the config.toml for every setting, or at least doesn't seem to have the option to do so. I broke my installation and had to find the posgresql key-value pairs for the settings, which was made harder by the fact that everything was stored as binary, which also made me have to edit it as binary as well. These were very simple settings that would have been a breeze in a flat configuration file. I absolutely do not like how necessary the WebAdmin is to manage simple things.

        That said, the integration with calendar/contacts is nice even without JMAP... Getting Thunderbird and Roundcube setup with plugins and proper settings made it so easy to get several users setup with calendars, contacts, and shared email-boxes and shared contacts right upon first login.

        The S3 storage is also working great (Hetzner Frankfurt VPS paired with AWS eu-central-1), and AWS downtime a few days ago notwithstanding, I'm feeling good about the reliability that gives me, leaving me mainly with the PosgresQL data store the main thing to keep backed up.

        This is a hugely ambitious software and as such, there will be many things that I will have a hard time getting used to as a hobbyist, but also a lot to be gained. I'm sticking around for now and waiting for version 1, improved documentation, and more clarity on how it all works.

    • zenmac 2 hours ago

      Yes, are there any decent JMAP web mail client that we can use?

      I have asked sooo many times since Stalwart first was introduced, but not got a straight answer. It is just FastMail or Topicbox. I want something like roudcoube or wildduck that can be used over https that I can self-host!

      • realityfactchex an hour ago

        It looks like Cypht [0] is the most actively maintained JMAP webmail client listed at [1], assuming that works.

          [0] https://github.com/cypht-org/cypht
          [1] https://jmap.io/software.html
        • audelair an hour ago

          I tried very hard to get it to work, but I simply couldn't get it to connect with my Stalwart instance over JMAP. I do have the permissive CORS and end-points and proxy-protocol seemingly working with my test HTTPS requests, and I also successfully got JMAP to work with the Mailtemi app, but no luck yet with Cypht[0].

    • drnick1 an hour ago

      But is there any real benefit over Postfix + Dovecot other than "it's new and written in Rust?" Postfix and Dovecot have been around for decades and respect the Unix philosophy of doing one thing and doing it well.

      • heavyset_go 11 minutes ago

        It's one tiny binary that does everything you could possibly need for hosting a mail server, including an admin UI, and you get a bunch of modern and convenient features for free.

        For example, it automatically handles Let's Encrypt certs for you. You get JMAP, CalDAV, WebDAV, CardDAV, IMAP4rev2, DKIM/SPF/DMARC, MTA-STS, DANE, spam filtering, SQL+blob+object storage backends, search, clustering, OpenTelemetry, etc all in one tiny binary.

        Downsides: some features are gated behind an enterprise version and I think the dev team is one guy, or at least it was a while ago.

        Having ran both for a long time, I'm sticking with Stalwart from now on as long as development continues.

  • yyyk an hour ago

    I can understand why JMAP instead of IMAP given the latter's antiquated design. I don't see the advantage to clients in replacing WebDAV though, and the others are a bit iffy too. They'll need to make a way better sales pitch than 'JSON vs XML'.

    I guess contacts/calendar follows JMAP naturally when the clients already implemented it, but that only applies in the 'already wrote a JMAP email client'. Virtually any other case would rather stay with widely supported protocols?

    • sureglymop 43 minutes ago

      Yeah because everything already supports WebDAV. It works well with iOS and Android which is imo a big advantage.

      However, doesn't stalwart already also support WebDAV though?

  • woleium an hour ago

    I wish there was an easy auto-update process for Stalwart. is anyone hosting an apt repo for it?

    edit: we use it on very resource constrained environments, the container version is too much overhead.

    • evrflx an hour ago

      Where is the overhead in a container? It is just a regular process. (Ok plus a container runtime process, but that is negligible)

      • woleium 22 minutes ago

        negligible for you, perhaps ;)

    • dijit an hour ago

      isn't it a static binary? Can't you do it the old-school sysadmin way and pull down a binary from github releases and update a symbolic link?

      • heavyset_go 7 minutes ago

        They make breaking changes to settings (and possibly data stores, but I forget) between versions, so to go from, for example, x.y.1 to x.z.5 might involve doing migrations between x.y.2 through x.z.5 just to use the latest version.

        This is not the case for all versions, but I've found it to be common enough that I have to read all of the release notes between point versions when upgrading.

        It can definitely be improved.

      • woleium 22 minutes ago

        yes, but that’s not as simple as apt automatic upgrades

        • dijit 10 minutes ago

          want me to write the script out for you?

          1. systemd timer

          2. curl github api

          3. if new release, fetch, verify checksum

          4. update symlink

          5. restart service

          i don’t think repackaging is actually easier here, for main services of a system is ok to skip the package manager.

          • heavyset_go 4 minutes ago

            You will eventually break your email setup by doing this, see my other comment.

  • matesz 2 hours ago

    Running Stalwart in production for ~20 heavily used accounts for some company and no problems so far! The simplicity for such a complex stack and flexibility of deployments is off the charts!

    • jdalsgaard an hour ago

      I second that; only running it for personal use on a few domains, but handles all the complexity _extremely_ easily.

  • pluto_modadic 3 hours ago

    if they pull out the AI stuff that'll be soooo cool :D

    • jasonriddle 3 hours ago

      What AI stuff are you referring to? I just learned about this project from this blog post, so I don't have the full context on their AI work.

      • antx an hour ago

        From the site [0]:

        > Stalwart Enterprise leverages AI technology to provide unparalleled email security and management. With AI-powered features, Stalwart Enterprise excels in accurately classifying spam, detecting sophisticated phishing attempts, and blocking various types of network attacks. This intelligent approach ensures that your email environment remains secure and reliable. Stalwart Enterprise comes equipped with a pre-trained large language model (LLM), offering robust out-of-the-box protection. Additionally, it supports integration with leading AI providers such as OpenAI, Anthropic, and other cutting-edge platforms, allowing you to enhance and customize your security measures. By utilizing AI, Stalwart Enterprise delivers a smarter, more efficient email solution that proactively safeguards your communications and data.

        [0]: https://stalw.art/enterprise/

      • doublerabbit 3 hours ago

        It seems the enterprise edition has AI features and the community version doesn't. So if you don't want AI, use the community version.

        https://stalw.art/compare/

    • lifty 3 hours ago

      Why does the optional (supported only in the enterprise version) feature bother you?

    • batisteo 3 hours ago

      Do you mean the spam detection algorythm or something else?

  • refulgentis 2 hours ago

    Anyone got a link to a better sales job on JMAP & friends?

    It sounds awesome but the way it is intro'd here:

      Over the past few years, the IETF has been redefining how email, calendars, and contacts are synchronized and shared. Building upon the success of JMAP for Mail, several new protocol extensions have been introduced:
    
      JMAP for Calendars - A modern replacement for CalDAV and CalDAV Scheduling.
      JMAP for Contacts – A powerful alternative to CardDAV.
      JMAP for File Storage – A replacement for WebDAV-based file storage.
      JMAP Sharing – A modern successor to WebDAV ACL.
      JSCalendar - A clean, JSON-based evolution of iCalendar.
      JSContact – A modernized, JSON-native successor to vCard.
    
    ...gave me pause. A protocol I've never heard even though I hang out here for an hour a day, was so successful, that it launched 6 new projects?

    Sounds more like the parts of the web dev that give me ick (new and shiny; rush to copy new and shiny in other contexts; give it a year; and all of a sudden only 1 of the 6 actually was successful)

    • WorldMaker an hour ago

      The big pitch for JMAP is for a modern web-tech-only approach to email/calendar/"groupware" servers. One reason to do that would be to make it easier to also build email/calendar/"groupware" clients entirely out of modern web-tech. Today most "web email clients" are bespoke to specific stacks/email servers. A dream of JMAP is that with the right CORS policy a single web client could interact with multiple JMAP servers, using only fetch/XHR.

      The modernization efforts of JMAP are interesting, too. Most of the old protocols are a mess of bespoke plaintext formats full of quirks evolved over decades in a giant mess of different software. Even the stuff that was already web tech like WebDAV and its extensions CalDAV and CardDAV were full of quirks, violated some REST "rules", and originally intended for a different purpose (file shares/FTP replacement). JMAP is much closer to "plain REST" than WebDAV's complex HTTP protocol extensions/changes.

    • ggm 2 hours ago

      You may only just have heard of them, but the WG goes back to 2017.

      https://datatracker.ietf.org/wg/jmap/history/

      Bron is the principal of fastmail, who now own pobox. This is a serious activity.

      • anoncareer0212 2 hours ago

        Counterpoint: I Google'd "jmap gmail" and a top result is a comment from HN in 2019 saying Gmail will never implement JMAP (it has not)

        That's a really cruel response, because this is important work. I don't want my kids beholden to bigco.

        I think it's real & important.

        I also wanna make sure people like me, who have to keep tabs on the intersection of "how can I help liberate from BigCo" and "how can I make a livable wage doing so"

        It is, quite literally, real, but also something you shouldn't waste time on if you're already busy. (c.f. https://jmap.io/software.html)

    • JadedBlueEyes an hour ago

      If you look it up, you'll see that JMAP is 6 years old now. It's a protocol for doing email (and now other things) over HTTP, without many of the legacy issues from IMAP and SMTP. https://en.wikipedia.org/wiki/JSON_Meta_Application_Protocol / https://jmap.io/index.html

    • candiddevmike 2 hours ago

      JMAP and friends are very niche, none of the "mainstream" email clients (that ship with most computers/phones) support it. So this feature being available is unlikely to grow the userbase, IMO.

      Now JMAP is quite a bit nicer to use than IMAP's API, but IMAP's gravitational field is too strong to be supplanted. IMAP is also becoming somewhat of a niche protocol, as the majority of users use vendor proprietary protocols for accessing their emails on Gmail, Outlook/Hotmail, etc. So why invest the time to add a niche replacement for IMAP when the entire protocol is a second class citizen to mainstream email clients.

    • SomaticPirate 2 hours ago

      Agreed, also not clear what this or why it matters. This is a new self-hostable email server basically?