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#Email

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2026-08-24 truespar/sentio S Email inbox API for AI agents. Give every agent its own real email address, receive mail as structured webhooks, and reply in-thread over REST. A complete multi-tenant mail server in Rust: inbound and outbound, DKIM/SPF/DMARC/ARC, MTA-STS, DANE, three-tier anti-spam.
2026-10-11 marclou/mailcheap S Self-hosted newsletters on Amazon SES. About $0.10 per 1,000 emails.
2026-09-04 R44VC0RP/superlocal A An email client & provider gateway so you can build your best email experience.
2026-09-13 panda-sandeep/dearagent A Email inbox API for AI agents, self-hosted on Cloudflare Workers. Open source, with an MCP server. AgentMail alternative.
2026-09-11 R44VC0RP/opensend A self-hosted transactional & marketing email layer on top of aws ses
2026-10-02 Show HN: Helo – An email API from former Postmark folks B Hi HN, I'm Ryan, engineer and co-founder at Helo ( https://www.helohq.com) - an email API for sending transactional and marketing email from your application: password resets, receipts, notifications, newsletters, etc. Most of our team worked together at Postmark for many years, so we know what it takes to build a reliable email service. If you've ever loved a product and then watched it get acquired, you probably know the rest of that story. We started Helo to keep building the kind of product we're good at, improve on what we have learned, take good care of our customers, and stay independent while doing it. We're bootstrapped and plan to stay that way. Helo covers everything you'd expect from a developer-focused email service: - REST API and SMTP, with SDKs for Ruby, JS, C#, Python and Go (more to come) - Separate infrastructure for transactional and broadcast mail - Event logs, stats, webhooks, suppressions, unsubscribes, flexible permissions - Usage-based pricing with no arbitrary feature gates - https://www.helohq.com/pricing Beyond the fundamentals, we've also put a lot of work into multi-tenant sending. When you're a platform sending on behalf of your own customers, you need to keep one bad sender from hurting everyone's deliverability, let customers send from their own domains, and keep stats and unsubscribes separate per customer. We've built Helo to address all of these concerns, while also allowing flexibility in how the relationships between domains, webhooks, credentials, etc. are defined amongst your tenants. For example, you can share one verified domain across all your customers while letting a few use their own, send all events to one webhook or split them per tenant, and give tenants isolated credentials with permissions limited to exactly what they need. If you've built multi-tenant sending before, what was most painful? Is there something you wish your email provider handled for you but doesn't? I'd love to hear about it.
2026-09-05 yoanbernabeu/pronote-digest A Chaque soir, le planning ou les devoirs du lendemain depuis les flux iCal Pronote, par mail ou autre canal. GitHub Action et CLI.
2026-08-28 686f6c61/Omarchy-Proton-Mail A Omarchy shell plugin: Proton Mail unread count in the bar, recent-messages dropdown and desktop notifications. No extension, no Bridge. Works with free Proton accounts and Domains.
2026-09-15 haoliyang/PhishDrill B PhishDrill is an open-source phishing drill platform with zero third-party dependencies: no C2 to set up and no commercial platform to buy — a single intranet machine (even a laptop) is enough to run the complete phishing attack-and-defense test of "send email → plant tracking → deobfuscate → attribute to individuals → deliver reports", with a browser management console and a real-time situational awareness dashboard.
2026-10-15 Show HN: I wrote an email app that accepts only one sender per inbox B Infinite inboxes, including prefixes where you don't have to create inboxes before you use them -- they self create when you add a suffix. Three types of inboxes: - One sender. Locks to the first domain to send email (except gmail, outlook, etc where it locks to an email account for obivous reasons. It bounces everyone else. - Temporary. Lasts for a while (24h, 7days, etc) then bounces. Received messages stay or go as per your choice. - Prefix. The most powerful. Declare a prefix like "service" and then invent any suffix, like "service-netflix" or "service$bank" and it creates a new one-sender inbox locked to whoever wrote first. Bring you own domain. Bring your own AI (MCP server ready). Forwarding. Please help me test it.
2026-09-04 doable-team/heyflare B Self-hosted HEY mail style email client on Cloudflare Workers — Screener, Imbox, Feed, Paper Trail, Bundles, Gmail + custom domains
2026-10-23 doeixd/effect-email B Effect-native transactional email for TypeScript: typed messages, durable delivery, providers, policies, SMTP, HTTP gateway, and workflows.
2026-11-04 brightsongwrath/personal-data-deletor-osint B Ask 970 data brokers to delete your data. Free, local, no account, no server.
2026-09-08 Alpha-Park/genpark-split-inbox-triage-priority-scorer-skill C Multi-channel inbox message priority classifier & response SLA tracker (Superhuman)
2026-09-08 alphaparkinc/genpark-split-inbox-triage-priority-scorer-skill C Multi-channel inbox message priority classifier & response SLA tracker (Superhuman)
2026-10-02 dtonon/outis B Fight spam by generating and sending a fake "user unknown" bounce emails
2026-10-14 gutomec/prospecteezy B Ferramenta local de prospecção B2B: busca no Google Maps via Serper.dev, coleta e-mails, conversa e faz campanhas no WhatsApp, com assistente de IA opcional. Bun + SQLite + React.
2026-09-21 fazlerocks/jevmail B Open-source AI email triage for Gmail. Sorts your inbox into Needs reply, Updates, Promos, Sales and Spam with Jev, TypeSafe AI's decision model, via Vercel AI Gateway. Read-only, runs locally, 1,000 emails in about a minute for 3 cents.
2026-09-01 RojanSapkota/tempmail-telegram-bot B A Telegram bot for generating and managing temporary email inboxes on demand.
2026-08-24 linxk8/-1m-mail B Free temporary email: generated in 1 second, no registration, burn-after-reading, auto-destroyed on expiry. Built on Cloudflare Workers + D1 + Email Routing, deployable to your own domain with one click. Design highlights: warm paper background glassmorphism, crystal light-and-shadow dual-state background cross-fade (paper plane ↔ envelope), verification code as you get it. Free temporary email — 1-second disposable inbox, no signup, auto-expiry & self-destruct, self-host on your own domain.
2026-11-04 nitrosend/nitromta C The open-source Amazon SES replacement. Built in Rust.
2026-09-24 ElasticEmail/elasticemail-examples C Elastic Email API examples: send transactional and bulk email, webhooks, inbound routing and contacts in 20 languages, frameworks and serverless platforms.
2026-08-24 ethanolivertroy/grokbot-cloudflare-inbox C Public GitHub template for a self-hosted Grok Bot inbox on Cloudflare Workers, based on Agentic Inbox.
2026-10-13 MonkeySaint/mailcraft C An open-source, clean-room reimplementation of Microsoft Outlook (classic) in pure Rust
2026-09-25 t508708/icloud-mail C Self-hosted iCloud Hide My Email management, email pool and API code-retrieval service; a derivative of mangobubu/icloud-api, with sources and license in NOTICE.md.
2026-10-20 Show HN: I built a task system to handle the drudgery so I could focus on tasks C I'm a software engineer from the east coast (who has lived in Boston, NY, the bay area, UK, France), and I built a task system called 3 & Done. It's the place you trust to store everything you need to do. It accepts voice input for rapid entry, as well as text (it stores the audio locally so you can listen to jog your memory) and emails you every morning with the three most important things for you to do that day, and why, based on what you've said about the task: deadlines, urgency, sitting too long. I've been at software engineering for about 44 years now... Grew up with it, which was unusual when I started, and I was always good about getting into the zone and doing things. The career started small, small company, then back office, the dot com startups, then smaller companies again after the bust, a non-profit, and eventually YouTube (Google at the time, but just barely) and Meta (just Facebook when I was there). When I hit the startups, and later big tech, it was no longer enough to just be an engineer, to have drive, to be good, you had to be organized, you had to follow through, get stuff done, and that's where the task systems started. Twenty-five over the years (and yes, I've actually counted), from Moleskine notebooks with Getting Things Done, evernote (remember evernote?), bug trackers, todoist, asana, google keep, among others. When I managed on the Facebook News Feed, I got into gantt charts (for me and my team), spreadsheets, OmniPlan... I remember apologizing to my director for being so disorganized (because I felt I was making a mess of it), and he told me that I was the most organized engineer he knew. That was because I was doing all of the work in the background, the trimming, the sorting, the reviews, but it was just so much work. Which was why I changed from system to system. Each time it built up, and I had to spend more time looking at things I couldn't or didn't get done, when I was rushed and couldn't put time into today's review, it would pile up, and then using it was so much work that I would start taking mini-notes, just emailing myself a few things to do the next day. That's actually the thesis of the app (but not where it started), that if I could just have a few things to do emailed to me each day, I could get it done. This app actually started when I described my previous startup failures into a Claude web session, and it repeated back to me what I had just said. My previous failures were because I spent too much time building the stuff I needed, and not building what I was supposed to be building. I decided that the app would email me three things to do every day (which matches best practices for attention), but that the day was always yours to decide. We won't overload you, but you can add more, if you're feeling up to it, or cut back, and we never shame and try our best not to nag (I often only finish two). If we get it wrong, you can tell us, and we'll re-rank it once a day, or you can set it manually, and if you do, we never override that choice. The web app is live, and native for both platforms is coming. In the meantime, on Android, you can use gestures to quick launch into the voice input so saving a task is only a gesture away (e.g. double-tap the back of a Pixel, double-press the power button on Motorola). Now let's talk about the dirty parts. I used AI to help me build this. Anthropic models mostly, and the brains of the app come from Anthropic models (I like the quality, I like the privacy, absolutely no training on customer data, and the stance of the company). This app is not some one-shot wonder where I asked frontier models to build a task system and then I put it on a server to show you. I have prompts for the various features (e.g. ranking, generating suggestions, task extractions), I have eval sets of task lists (not anyone's real tasks, but constructed from patterns in my tasks, or the tasks of testers who allowed me to fix the problems they were having), with the three I expect to come out. I store the eval outputs, and re-test whenever I add a new rule to a prompt, or whenever testing a new model version. The great thing about having this eval set is that it catches when I get it wrong. When I introspect a failed run, sometimes it's because I need to tune a prompt, but sometimes it's because I missed something in my own ranking. I did the same thing with my infrastructure as well, so this time, instead of setting up servers, and building login systems, and managing databases, I built on Vercel (git push to serving Next.js), Neon (hosted postgres). I started getting emails mailed to me by mid-June, but started getting usable suggestions on June 26, and I've been using it every morning since. I wanted it to be easy to get started, and easy to use, so the input handles mess (you can add multiple tasks in the same run-on sentence, and a friend who helped me test it just pasted his entire obsidian todo list in wholesale to get started). I wanted to make sure that anyone could try it out, so I built a trial feature that uses the real in-app ranking with a list of items you provide. If you want to try the service, there's a free 14-day trial (card required), and then it's $99/year or $9.99/month after that (plus sales tax). We warn you seven days before your card is charged and if you cancel, you keep access through the term (either the trial, or our last paid period). Online, through settings -> billing, no email, no call. I really hope you'll try it out. If you do, please tell me if we did a good job picking out your day. https://3anddoneapp.com/try
2026-10-12 brombomb/teslamate-digest C Automated personal email digests, financial analytics, battery health tracking, and retrospectives for TeslaMate.
2026-09-10 AhmedAbdelgelel/jobscraper C A scraper with crawler to find and send you the newest and most suitable jobs for your current job title
2026-09-03 zuodazuoqiang001/skymail-oneclick C One-click Cloudflare deploy for Skymail / Cloud Mail, including Email Routing catch-all.
2026-10-23 hieunc229/mailflare-macos C Email client for macOS
2026-10-07 julianashimanovska-dot/sveltekit-feature-request-board C SvelteKit feature request board with Mailtrap email notifications
2026-10-07 VeljkoRailsware/flask-csv-summary D Flask app that summarises uploaded CSVs and emails the result via Mailtrap
2026-10-07 mirjanamRW/express-feedback-receipt D Small Express app that collects a rating and feedback, validates input with Zod, and emails the submitter a receipt via Mailtrap.
2026-09-11 aniflax/ANIXD-M D Open-source marketing platform — Next.js 16 • TypeScript • PostgreSQL • WhatsApp/Email/SMS/RCS.
2026-11-05 email-marketing-skills-hub/email-marketing-skills D Email marketing skills collection by Poptin.
2026-10-07 ketabb565/express-lost-item-report D Express lost-item report form that emails venue staff via Mailtrap
2026-10-07 narekhovhannisyan/fastify-review-request D Submit a document URL for one designated reviewer.
2026-10-07 sd-ivan/fastify-pickup-order D Fixed-menu lunch pickup ordering app built with Fastify, demonstrating request schemas and status transitions with an email notification on ready.
2026-09-10 emelia-io/claude-outreach D Universal B2B outreach skill for Claude Code. 16 sub-skills + 5 sub-agents: ICP targeting, lead sourcing, email finder, phone finder, verification, AI personalization, multichannel sequences, deliverability, campaign launch, reply handling and GDPR compliance.
2026-09-30 Anirudh10-png/Inbox-pilot D InboxPilot AI is an AI-powered email management platform that uses NLP and LLMs to classify, prioritize, summarize, and analyze emails while generating context-aware replies. Built with React, TypeScript, Python, and FastAPI to streamline inbox management and improve productivity.
2026-08-25 Wecncode/Social-Sentinel D An open-source, AI-powered NLP tool designed to detect psychological manipulation, urgency, and zero-day social engineering tactics in emails and text messages.
2026-09-23 Lakedendynamo/Thunderbird-Studio1 D Clean interface, solid performance
2026-09-23 keylocksmithmomentum/Thunderbird-Studio D Clean interface, solid performance
2026-09-20 parth-kp/jev-mail-classifier D Classify your inbox with Jev (TypeSafe's System One model) — tag, move, flag, and notify, all config-driven.
2026-09-03 devjitpanja/WiMailer D
2026-09-23 lowspongeagora/Outlook-Hub D Cross-platform ready package
2026-11-06 jessfraz/beep-boop unrated An agent, regrettably.
2026-11-05 vitosans/rail unrated A modern terminal mail client for Gmail and Microsoft 365, with an MCP server for AI agents
2026-11-03 sums001/OpenInbox unrated Free, unlimited business email on your own domains, running entirely in your free Cloudflare account.
2026-10-29 Juansive/Yunyun unrated Email assistant and companion agent
2026-10-29 macro-inc/macro unrated Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.
2026-10-25 UCS-Care-Group/mailcraft unrated MailCraft: an open-source, clean-room mail, calendar and contacts program in pure Rust, for Microsoft 365, Outlook.com and IMAP. Early alpha.
2026-10-25 mailschema/mailschema unrated Working-draft Mail Action Protocol for agent actions through email, with type contracts, a registry, and a validation CLI.
2026-10-24 Show HN: Automated newsletter built with Grok bot unrated powered by sendfox mcp / api
2026-10-23 Show HN: NeoInbox, a recreation of Google Inbox as a Thunderbird extension unrated 12 years ago today (Oct 22, 2014), Google released Inbox by Gmail™, definitively solving email UX. Even now, 7 years after Google made the objectively incorrect decision to shut it down, almost nothing has come close to Inbox's elegant way of visualizing and organizing emails. (The best attempt by far was a cloud email service called Shortwave, which was at least initially intended as a true spiritual successor to Inbox. Sadly, even that project ultimately strayed too far from the Inbox UX, implementing a non-optional 2-pane view that did away with one of Inbox’s best UX concepts.) Given this constant stream of false starts and betrayals, I wanted to build something that looked and worked more or less exactly like the original Inbox, but was fully local and could work with any email account. Something that, once you had it on your computer, wouldn’t suddenly vanish or change because the creator lost interest or suddenly got a different idea about how your email should look! Since it's just a Thunderbird extension, NeoInbox works with any email account, and runs completely locally. It also includes all your favorite classic Google Inbox features like a unified mail stream, bundling, trip detection, reminders, and more! Give it a try!
2026-10-21 Show HN: What if Instinct and GrokBot had a baby? unrated introducing studio by sharenow a team of lil helpers that keeps working after you close the laptop each helper gets its own computer, awake 24/7 its own email, plus sites and apps live on http://sharenow.today (Ctrl⌃) x 2 and talk, it sees what's on your screen voice mode: just talk and it routes to your best helper press the Action button to call your helpers they make phone calls for you they find customers, write emails, build pages nightly routines, wake up to it done runs on the plans you already pay for Mac, iPhone, Android, web and iMessage would love feedback!
2026-10-21 Show HN: VM 9.0.0, a mail reader for Emacs unrated VM is a mail reader that runs inside GNU Emacs, a once popular mail client brought back to life as a community project. VM 9.0.0 is the first major release since the revival, with many bug fixes and new features. VM features: - Non-blocking IMAP and POP access, so you can fetch and save mail while carrying on in Emacs. - IMAP and POP mailboxes cached on disk, so a folder stays accessible when the server is unreachable. - Virtual folders: a folder view of messages across multiple folders, chosen by selection criteria. - MIME support with inline and external display. - HTML mail displays on a stock Emacs, through shr, the renderer eww uses. - Folders in plain mbox format, and mboxcl2, which does not irreversibly quote lines starting with "From ". - PGP access with EasyPG, Emacs's standard gpg interface. - A configuration check, M-x vm-check-configuration to assist in setup. - Emacs 28.1 or later. - Extensive documentation. - and much more To install from NonGNU ELPA: M-x package-install RET vm RET or via make from the source tree. The NEWS-3.md file in the package lists everything in this release. Source and issue tracker: https://gitlab.com/emacs-vm/vm
2026-10-21 Show HN: VM 9.0.0, a mail reader for Emacs unrated VM is a mail reader that runs inside GNU Emacs, a once popular mail client brought back to life as a community project. VM 9.0.0 is the first major release since the revival, with many bug fixes and new features. VM features: - Non-blocking IMAP and POP access, so you can fetch and save mail while carrying on in Emacs. - IMAP and POP mailboxes cached on disk, so a folder stays accessible when the server is unreachable. - Virtual folders: a folder view of messages across multiple folders, chosen by selection criteria. - MIME support with inline and external display. - HTML mail displays on a stock Emacs, through shr - Folders in plain mbox format, and mboxcl2, which does not irreversibly quote lines starting with "From ". - PGP access with EasyPG, Emacs's standard gpg interface. - Emacs 28.1 or later. - Extensive documentation. and much more To install from NonGNU ELPA: M-x package-install RET vm RET or via make from the source tree. The NEWS-3.md file in the package lists everything in this release. Source and issue tracker: https://gitlab.com/emacs-vm/vm
2026-10-21 Show HN: Worklicant – Lightweight ATS. Pay per Vacancy. AI Enabled unrated I have noticed that a lot of job posts that do not use any ATS, and in order to apply, they put their emails and ask candidates to apply with “X” in email subject. That seemed to be very counter productive — imagine having 300+ emails with resumes. Where do you manage them? In Excel? Or how many good candidates you never get to. I researched popular ATS systems and found out that they require yearly / monthly subscriptions. A lot of them do not have a pricing on the website, so you gotta book a call to be quoted some yearly contract price… So I built Worklicant — lightweight ATS for tech hiring. Pay per vacancy. Post a job, share the link, easy application form (no registration needed for applicants). Easy in-app scheduling. Vacancy analytics. Custom hiring stages, tags, notes, application questions. AI extraction of resume summary, companies, experiences so you do not have to open each resume. You can also write a rejection prompt with ideal candidate description. That will be taken into account when AI (Jev) gives score to each applicant. I have worked on it for around 2 years on and off so most of the code was hand written (but that’s changing rapidly). Give it a try and let me know what you think!
2026-10-19 Show HN: Parents Inbox – Communication Guide for Schools unrated At a dinner party with other parents recently, the conversation turned to the challenges we all have with communication coming from our children's schools. Emails and Texts and App notifications, coming from Teachers, Admins, PTA, After-Care programs. Overlapping information, buried key details, verbose fluff. An avalanche of text every day that must be carefully parsed to find important info. This seems to be a universal problem and certainly one I experience every day. So literally before dinner was over I built the first version of this site on my phone with Claude. I think the main problem is that the folks who are responsible for communication just don't have the tools and experience to know what good communication really looks like, or the parents perspective hasn't been demonstrated to them to give them more empathy. So I am hoping this can help. Feel free to share if you have the same problem with your school.
2026-10-18 useopendesk/opendesk unrated The open-source support inbox + live chat for your website
2026-10-18 Show HN: InBox Wall – A local-first, open-source email sanitizer for AI agents unrated An open-source, local-first MCP server designed to sanitize email HTML and protect local AI agents from hidden CSS/Unicode prompt injections before the LLM processes the data.
2026-10-17 Show HN: GmailClass – Chrome extension that labels Gmail emails unrated This has most likely been done before but it's a chrome extension that classifies your emails, powered by Jev. Just provide your Typesafe API key and it works. There are some default labels but you can create your own easily in the chrome extension settings. Enjoy!
2026-10-16 BerriAI/agentchat unrated A unified Python SDK for connecting ai agents to Slack, Discord, Teams, Email
2026-10-16 Doulor/DoulorCloud unrated Doulor Cloud — a one-stop cloud resource distribution platform: subdomains / domain email / R2 direct-link cloud drive / personal profile card / AI API relay. Pure static frontend + Cloudflare Workers + D1 + R2.
2026-10-16 OSINT-Experts-Society/Consensus-OSINT unrated OSINT tool for username search, email lookup and phone intelligence. 7,900+ lookup modules standardised from 19 projects, with enriched results, evidence graphs and MCP integration. By the OSINT Experts Society.
2026-10-16 OrgoAI/bops unrated Bops: a team of AI bots that run your business ops, each with its own computer, email and phone number. bops.bot
2026-10-16 SirLouen/pecl-mail-imap unrated An extension to operate with the IMAP protocol, as well as the NNTP, POP3, and local mailbox access methods.
2026-10-16 boringcomputers/goshen-email unrated Email for AI agents, hosted on Cloudflare. Inboxes with an HTTP API, MCP server, SDKs, and a dashboard.
2026-10-16 buzzkit-dev/buzzkit unrated The open source notification orchestration layer
2026-10-16 c9dev/penguin-mail unrated Mail and calendar for Linux and macOS. Gmail and IMAP accounts, Google Calendar, contacts, OpenPGP and S/MIME. GTK4 and libadwaita, written in Rust.
2026-10-16 chenyuwebwawa/OpenMail unrated A self-hosted, open-source mail server suite in a single Node.js process — full-stack email with SMTP / IMAP / POP3, a modern three-pane webmail, an admin dashboard, multi-tenancy, DKIM, anti-spam and 2FA. Zero native dependencies, one SQLite file, up and running in minutes.
2026-10-16 flectar/mail unrated Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 90 MB of RAM.
2026-10-16 huacnlee/omamail unrated Omarchy mail plugin with Gmail, HEY and IMAP supports.
2026-10-16 inlark/inlark unrated 📧✨ Beautiful email. For everyone.
2026-10-16 mailez-hq/mailez unrated Self-hosted mail server for your own domain: SMTP/IMAP/POP3, CardDAV/CalDAV, React webmail and admin console, one-command Docker Compose.
2026-10-16 mirza-rizvi/ResolveHQ unrated Self-hosted helpdesk on Cloudflare Workers: D1, R2, Queues, Email Routing. Shared inbox, email threading, AI assist.
2026-10-16 sitimas9/ghsibudi unrated utility scripts
2026-10-16 suvamneog/jobradar unrated Watches company job boards, scores openings against your resume, and emails you when something worth applying to shows up.
2026-10-16 Show HN: Forwarder.cc – Static-site forms sent to your inbox, pay per message unrated TL;DR: 12 years ago I built a service that forwards simple HTML forms to an email address. I've been procrastinating on finishing it ever since, until today. You point your form at it and every submission lands in your inbox. It runs on credits, 1 credit = 1 message, no subscription. Perfect for static websites. — Hey folks, back around 2014, alongside my job as a software engineer, I was building a lot of static websites for my own clients, mostly small businesses that just wanted a simple site. To avoid headaches, I went fully static, often hosted on GitHub Pages and similar. But most clients also wanted a contact form, and a form needs a server running somewhere. I had my own weekend-hacked service for this, which literally just forwarded the form to the client's email. I didn't invent anything here: one service I particularly remember was FormKeep by thoughtbot, that I really liked. So I started building my own, mostly because I loved losing myself in side projects like this, and also because I was a cheap ass and thought I could do something similar for less, and without a subscription. By 2016 I had done about 90% of what I'm showing you today. I called it "The Great Forwarder". Everything was ready: backend, frontend, hosting, Stripe, landing page. I even had a designer friend help with the design (sorry, Valentin, if I've botched it since). Then I started another project, which took off right away and took all my attention for a while. Fun fact: that project has been using this service ever since, and almost every message ever sent through it came from there. So for years, I kept Forwarder.cc up to date, upgrading libraries and trying new ones: axios, got, Redux, Zustand, create-react-app, webpack, Vite… It became my laboratory for everything I wanted to explore, while always staying up and maintained (again, for my own use only). The only thing that ever held me back from launching it was a missing help center, and, more honestly, the fear of putting it in front of people. So today's the day: after 12 years of procrastination, I finally finished the help center. I know there are a ton of similar services nowadays, but anyway, what do you think of that help center?
2026-10-15 Show HN: An Email-to-iMessage Gateway unrated Mobile carriers have long supported email-to-SMS functionality, but in the United States, the big three (Verizon, T-Mobile, and AT&T) have deprecated these services. So a crop of commercial email-to-SMS services have sprung up, and one of my SaaS tools is exactly that. But because SMS is so regulated now, and the 10DLC process is such a pain, and because I wanted to support international numbers, I embarked on making email-to-iMessage work, and I finally figured it out. Try it now: Send an email to [email protected]. If you have a non-U.S., non-Canadian number, be sure to include the country code. U.S. Example: [email protected] U.K. Example: [email protected] India Example: [email protected] Whatever you do, don't forget the "i"! Website: https://text.email
2026-10-14 Show HN: GotEmail – a native Mac mail app with one-click sign-in codes unrated Hi HN, I'm one of the two people behind GotEmail. It's a native Mac mail client for IMAP accounts (Gmail, Outlook, iCloud, Fastmail, any IMAP). Things we focused on: speed, a calm UI, and small things like copying a sign-in code or opening a magic link from a login email in one click. AI drafting and summaries are there, but only when you ask. It's a one-time purchase, $19.99, for every Mac you own. Happy to answer anything, and critical feedback is very welcome.
2026-10-14 Show HN: Made a good work assistant but can't promote it. Like Viktor.com unrated I'll be brief. It's only me, but have 20+ yr tech experience. Due to lost work/clients focused on ActorDo. It connects Email, Calendar, Tasks over Microsoft and Gmail accounts. It's an agentic AI that you can ask or make requests over the tools. Also created Slack, Microsoft Teams, Whatsapp, Outlook Add-in, Chrome extension It also has an Automations Studio for trackable automations. Built-in editable memory for all interactions. It really saves users time. How do I sell it?
2026-10-14 Show HN: Form to Email unrated Skip email lists. Forms that submit directly to email.
2026-10-11 Show HN: Mailbox Viewer – publish FOIA email dumps as a static Gmail-like site unrated Responses to public-records (FOIA, or California PRA) requests often arrive as PST or mbox files, which 'normal' people don't know how to open. If they're lucky they can import them into Apple mail or the Outlook desktop client. But it's hard to share with others, and impossible to link to a specific thread or a specific spot in a specific thread. Jmail ( https://jmail.world), the Gmail-style viewer for the Epstein emails, was heavily upvoted on HN, because it felt so easy to use. I had hoped the team would open source the code, but I don't think they did. My first attempt at my own version (made for a specific pst file I received) was usable, but had some limitations. Recently, I threw Claude Opus 5.5 (xhigh) at the problem. This is the result. The mbv build command turns a mailbox (PST, mbox or Maildir) into: - a set of parquet files - a word index - embeddings. You upload those to any static host that support HTTP range requests (e.g. Cloudflare R2) and deploy one front-end viewer (e.g. Vercel) for any number of mailboxes. There's no backend computation. The browser queries the Parquet files with DuckDB-WASM over HTTP range requests. It rebuilds conversations (including from Outlook's Thread-Index), keeps folders as labels, supports Gmail's search operators (from:, has:attachment, before:, OR, "phrases"), searches text inside PDF and Office attachments, and adds semantic search with a small embedding model that runs in the browser. Every view has its own URL, so you can deep link to a search and a conversation. This link searches a school district mailbox for "straight white male" and opens the matching thread with the hits highlighted: https://mail.ocaho.com/youcubed-2026-03#search/Straight%20wh... Demo with a fictional mailbox: https://mail.ocaho.com/demo Code (MIT): https://github.com/rahimnathwani/mailbox-viewer
2026-10-09 Show HN: ImapKit, a in memory IMAP server to test mail client apps unrated I rejuvenated my very old IMAP testing framework called Hoodiecrow and gave it a new name - ImapKit. It allos to set up custom IMAP servers that can be used for automated testing of mail and IMAP clients
2026-10-07 beacampos/express-referral-introduction unrated Express + EJS app for sending consent-based referral introductions via Mailtrap
2026-10-07 solovey23/express-bug-report-desk unrated Small Express CRUD app for submitting bug reports and emailing reporters when they are resolved. Node 24 built-in SQLite, Zod validation, Mailtrap delivery.
2026-10-07 Show HN: Use your own Amazon SES account for email workflows unrated Hey HN! We built SendOps because we think email can be a good medium to help users through their journey with your product. Onboarding a new user and helping them in their journey in your product can be specific to the actions they take, their goals and it allows them to read or explore in their own time and not based on your timeline. After a while of running a service for a few years, we all end up with a few thousand if not hundreds of thousands of emails who signed up for our service. Some become customers, some never try the service and some might activate at some point in the future, when the time is right. Email workflows (drip campaigns etc) have existed for a long time. However, all workflow providers charge both per email and per contact you have on your books. This usually means one of two things: 1. you pay a lot of money for contacts you don't email often. 2. you have to keep modifying your list based on your communication to avoid higher bills. We also wanted to be able to build effective and useful email workflows using our coding agents. The result of our work is SendOps: SendOps is an email workflow product that sends emails through your own AWS SES account, charges no fees for contacts, or per email (just a flat fee subscription) and lets your coding agents help you with building your email workflows. We hope you find SendOps useful. We've been members of HN community for a long time and love how direct and helpful your feedback is. So, please try it out if you think it can be useful to you (we have free-forever tier) and let us know what you think! https://sendops.dev Thank you
2026-10-06 Show HN: A simple script to stop all cold sales emails from reaching your inbox unrated Hey HN! Sharing this script I've been using professionally and personally to stop the crazy influx of cold emails that I get daily. It works in the following way: 1. Copy + install the Google Apps script in your Gmail. The script runs every 10 minutes by default. 2. The script will automatically use a series of Regexes as a first line of defense (modify as you like!). If that fails it will use an LLM of your choice to make the call (this is optional but highly effective). 3. Flagged emails skip the inbox and get tagged with a "Cold email" label. Nothing gets deleted. From running this for the past couple of weeks, it catches 99% of all cold emails and helps me stay in flow state. Hope this helps other people too!
2026-10-06 Show HN: Cold B2B email should be free (FlyHedwig) unrated Until recently I didn't understand what cold email really was and I accepted its price as one of those "it is what it is" things. But exploring the topic, I realised that there is no reason someone should have to pay for cold email, so I built FlyHedwig. With FlyHedwig you can manage hundreds of email addresses, schedule sending times, import lists, get stats... all the good stuff. Ah, and it's got some cool AI-classification and draft built in. If you work with cold email, I'd love to hear your thoughts! And if you like the project, as it's OSS, starring it would help it reach more people and encourage me to continue to improve it!
2026-10-05 Show HN: Exro – I got tired of cleaning up copy/paste between apps unrated Between Slack, Claude, GPT, and Gmail, I'm constantly making formatting changes: deleting timestamps and Slack's (edited), making API fields inline code, removing weird highlighting, etc. I tried changing this with prompts, but for things like formatting rules, it didn't get applied consistently. So I built Exro. It scans the pasted text and applies deterministic changes with no grammar/copy changes whatsoever. You can paste something in and try it directly. Let me know if you have any suggestions!
2026-10-03 Show HN: Subscribe to Your Email – Thegoods.email unrated Looking for beta users, I made this to solve the problem of being overwhelmed by school emails, and just wanting to get when events were happening.
2026-10-03 Show HN: Outis – Fight AI spam by sending fake "user unknown" bounce emails unrated Outis fights spam generating and sending a fake "user unknown" bounce for an email you received, so the sender believes your address does not exist. Of course this isn't a novel idea, I created a similar program back in 1998–1999 (actually, with a slightly different purpose), but I decided to revive it because it should work quite well with the recent trend of automated emails generated by AI, where the sender might expect a reply; it helps remove your email address from their list. I don't have strong evidence about its effectiveness, but I'm testing it for few weeks and the spam noise seems to be reduced; I don't receive similar or followup emails any more. Any idea on how to improve it? :)
2026-10-02 Show HN: Inbox Cleanup – get to inbox zero in Gmail unrated We've been working on a small tool that can help with huge (or really, any size) Gmail inboxes. It's meant for people who have let their inbox grow for years and don't know where to start. We had this idea after talking to a lot of people about how they use their email, and one thing that kept coming up was how hard it is to keep up when you receive a lot of emails. Things pile up and cleaning up starts to feel impossible. One important detail: the tool never performs any destructive operations on your email. The most it can do to a message is archive it (move it to the All Mail folder), where it stays available for search, so you never lose any messages as a result. It combines multiple approaches to inbox cleanup: - You choose a cutoff date to archive everything before that - With some help from OpenAI, we find other groups of emails you may want to archive - We detect newsletters you rarely open and let you unsubscribe in one click - For transactional emails you rarely open (e.g. tool notifications), we suggest filters that skip the inbox and keep them under a label instead At the end, you can undo all the inbox changes you made. Gmail API calls happen client-side. Also, your messages and contacts are not stored on our servers. Some message metadata and snippets are sent to OpenAI to help with categorization. Curious how many of you actually use inbox zero, or have considered trying it? Happy to get your feedback.
2026-10-02 Show HN: I got sick of sequencers and CRMs, so I built this unrated I've built and sold software that plugs into CRMs, and for years I've been unhappy with mass messaging and sequencer tools. They feel generic, and they don't work. I have a warm book of relationships and a long sales cycle, and I need to keep everyone up to date with personalized outreach. No tool did this, so I ended up dumping my entire email into an agent chat and asking "who should I reach out to today?" That helps with replies, but it doesn't answer "who are the best prospects I've ever talked to, and what message gets them closer to a sale today?" So I built Ember. It reads your inbox and CRM and keeps up with every relationship the way you would. If someone says "circle back in April," it circles back in April. If it isn't sure, it asks first. My company's sales team still pays for HubSpot and Attio, but Ember is the only interface they use now. I think we'll drop those soon. It's not cold outreach and it's not a workflow builder. It's more like a version of me and my team that never drops a thread. Free to try at withember.ai.
2026-10-01 Show HN: Paperweight – local-first, open-source email cleanup and privacy tool unrated Hi HN, After building for 7 months, I'm excited to announce Paperweight V1. The idea is that your inbox knows who you ever interacted with and knows where your data lives. Every account you ever created, every service you signed up for, and every online purchase is connected to your email. Most people have hundreds of accounts they've forgotten about, creating security risks and privacy exposure. Paperweight scans your email history locally to find old accounts, companies, mailing lists, data breaches, and personal information. You can then unsubscribe, clean up unwanted email, send privacy/GDPR requests, and keep track of your digital footprint. The main constraint from the start was privacy. It never felt right that with a lot of alternatives, in order to reclaim your privacy you first had to hand over your data. While some of them have been caught or openly admit to sell your data. With Paperweight all your data stays on your device. There's no back-end or external service analyzing your inbox. And the entire app is fully MIT-licensed. V1 also adds (local) MCP support so an AI agent can interact with Paperweight instead of needing direct access to your inbox. I originally started this after discovering that Odido, the Dutch telcom company was breached. I haven't been a customer with them for 8+ years, but they still had all my data in their systems. Happy to answer any questions or hear what you think. GitHub: https://github.com/wslyvh/paperweight Website: https://www.paperweight.email
2026-10-01 Show HN: Hedwig, a free and open-source alternative to Instantly and Smartlead unrated I created an open source alternative to tools like Instantly or Smartlead, which charge huge amounts of money per lead for basic cold email campaign management. The emails are sent from your inbox, and you get open rates and analytics for your campaign. It also comes with an MCP server, so you can manage the whole campaign from Claude or Codex. It also has multi email option, so you can spread the senders through various emails as you like, and many other things like classification of replies or automatic draft reply generation. If you like the project, you can sign up and use the hosted version and if you star the Github project it would help it grow! Let me know what you think :)
2026-09-29 Show HN: Dodosend – a Fast keyboard first Gmail client unrated A while ago, I worked on an gmail clients and ended up learning a lot about email, so I kept building my own. The things I cared about most were speed, privacy, good UX, and full keyboard shortcuts support. It's still a beta, you can try it through interactve demo or download here: https://dodosend.com P.S. If you request access, please only do so if you're willing to actually try it and send me some feedback.
2026-09-25 Show HN: Shelf – Gmail sections and notes, no access to your account unrated I live in Gmail - tight inbox, labels for everything - and kept hitting a wall where labels just turned into smaller piles. I wanted section headers inside a label so I could organize my email however I wanted, and the ability to add context/next steps to emails. All the other tools wanted full-mailbox access to do that, so I built this for myself and some friends told me to publish it :) Shelf is built as a page-overlay with just one permission (storage) - no API, no OAuth, no server, no analytics. - Sections create groupings however you want, notes live in local storage, and it draws in Gmail's own visual language so you should hardly notice it's there; making it feel native felt important. Honest limitation: chrome desktop only, no mobile Free: https://chromewebstore.google.com/detail/dgomdjjoogkknnggfbggcdnlogkhdpng Source (GPL-3.0): https://github.com/gpon505/shelf-for-gmail 60-second demo: https://www.youtube.com/watch?v=kPMgNId_teE Not trying to make money, just hope this is useful to some other people -- let me know if it is!
2026-09-24 Show HN: Cloud-based email and calendar sync platform and Android app – for sale unrated Hello, My name is Kostya Vasilyev and I was the original developer of an Android email app called Aqua Mail, sold to MobiSystems in 2019 at 3.5 organically grown users. After that, I built a new email app called Sugar Mail, based on a cloud email sync platform. The project hasn't been a success with end users, but I think the sync platform could be useful to someone so I'm looking to sell it and include the app too. Mail sync runs in the cloud and supports IMAP and Exchange, both with push mail, and the latter with bi-directional calendar and contact sync. Both Office 365 and on-prem Exchange are supported. Running mail sync in the cloud allows the Android app to be very efficient in terms of battery use. The Android app is just a JSON RPC client with some UI on top - so building an iOS or a desktop app would be pretty easy for the buyer. There are several geo-distributed server nodes and the Android app uses the closest one. Adding nodes for capacity is easy. The project is actively maintaned, with the Android app optimized for Android 17. The server is written in Go. I recently rewrote it in Rust, but decided to stay with Go in production for a variety of reasons (would be happy to explain in more detail). Unit economics: a $10 VPS can handle 1000 users each averaging 2 email accounts. A comparable platform is Nylas which charges $15/month per 10 accounts and has no end-user app (they used to, but not anymore). More details here: https://sugarmail.app/for-sale-one-pager.html Happy to answer questions.
2026-09-23 Show HN: Jade Email. Unlimited emails for your domain plus AI Agent support unrated Hello HN! I've spent the last 4 years building Jade.email, an email service, and it's now better than any email service I've used. I'm incredibly proud of it and have a small group of paying customers already. It's similar to SimpleLogin where you get unlimited emails for your domain on the fly. The key difference is that it's not a relay that just forwards to your existing email. The whole product is designed around this concept, and you get actual mailboxes that you can connect to with IMAP, have different rules for, view separately, etc. The rules are really powerful as well, and can target different inboxes. I have any emails that have login links or verification codes notify me and self delete after 7 days. I have rules that automatically mark an email as read if it has any "list-unsubscribe" headers and then automatically try unsubscribing. The best part though is you can connect any agent to it (except Gemini because Google is the worst) and it can not only do the normal email stuff, but it can also manage your rules too. So if I have a new inbox I'll ask Claude or ChatGPT to analyze that inbox and suggest rules or categorization/etc and it just works. It's also an approved plugin on the ChatGPT plugin marketplace so I'm seeing AI first sign up traffic from people who have never even visited the website. You can sign up for free and receive email at a domain I generate for you if you want to try it out. If anyone is interested in trying out the more full version where you have your own domain and send email, I'm also happy to send you a promo code for the first month free. Also happy to answer any questions!
2026-09-22 chatbase-dev/chatbase-dev.github.io unrated A Chatbase review for teams choosing a support agent: what the platform covers across chat, email and voice, who it suits, and the work it will not do for you.
2026-09-22 Show HN: Snagr – abandoned checkout emails for Polar unrated I sell digital products with Polar. When someone opens checkout and leaves, Polar doesn’t keep that lead in a useful way for me. Snagr captures the buyer details at checkout and sends a follow-up email so they can finish payment. Built it for myself. In the last 30 days it recovered $269.76 for me. Would love feedback from other Polar / indie sellers and if they would love to see something similar for other Merchant of Records
2026-09-20 Show HN: Text-me: a personal agent that learns your pace unrated Hey, I built text-me because every productivity app I tried gave me one more place to be and maintain. Meanwhile my life actually happens over email, messages, calendar, college, Kindle, reading, and Substack. And I always have to be somewhere else. So now I send everything to one place, like texting a friend. It separates life from work, and every week it analyzes and gives you a place to start instead of another dashboard. You can connect your email and calendar through Plow. It always asks before changing anything in your calendar or sending a message. And the part that interests me most is that I don't have to keep re-sorting twenty things anymore, because it remembers. If I say some activity takes me 45 minutes on average, but I actually take 60, it learns that. So next time, if I write 45 minutes it puts 60, and it keeps adapting my calendar to that. And every morning it can send a newspaper with everything that matters to me: the people I need to answer, what changed overnight, what I have to solve today. It can even send something funny, and that goes to my Kindle. Of course it can go to the printer, email, or the chat, but I send it to my Kindle. It's open source and works over iMessage or SMS. I built it during a hackathon, and it came out of my own problems. Now I want something that learns the real pace of life. I'd love your feedback on what you think should improve.
2026-09-19 Show HN: StopReg – Email API for detecting disposable email and signup abuse unrated I built StopReg to address a problem I encountered while testing disposable email detection across different email validation services. One possible explanation for some of the gaps we observed is that email verification services may rely heavily on third-party disposable-domain lists. Maintaining a robust detection system requires continuously researching new disposable email providers and tracking domains as they appear, change, or rotate. New disposable email services and domains appear regularly, and some providers frequently change the domains they use. This can make static or infrequently updated domain lists difficult to keep current. During our testing, we also found many disposable addresses that were able to pass signup checks on online services offering free trials or attempting to prevent disposable email registrations. In some cases, those services appeared to rely on third-party email verification platforms with limited disposable email detection. The practical problem is that missed disposable addresses can contribute to free-trial abuse, fake account creation, referral abuse, and other forms of signup abuse. They can also affect the quality of email lists when temporary addresses are collected instead of addresses belonging to users who intend to receive future communications. That's what led me to build StopReg. StopReg provides an API for validating email addresses and domains and classifying addresses as disposable, temporary, throwaway, relay, alias, role-based, public, EDU, ISP, and other categories. It also includes Form Abuse Shield, which is designed to help applications protect signup and lead-generation forms from unwanted or abusive submissions using email and domain validation signals. The enforcement layer lets an application decide what to do with a validation result: BLOCK an address WARN and allow the submission ALLOW the address I also built a free Disposable Email Checker so developers can test addresses without integrating the API: https://stopreg.com/check-disposable-email Feel free to request samples of temporary email providers to test against your current validation system for detecting temporary and disposable emails. I'm interested in feedback from developers who have dealt with disposable email, fake signups, form abuse, or maintaining disposable-domain lists themselves. In particular, I'm curious about what approaches you've found reliable for detecting new disposable email providers and how you handle false positives.
2026-09-17 Show HN: I built IndieRoadmaps, a simple roadmap builder for indie hackers unrated I built a place where you can create your public roadmap and let your community vote on its features. When you ship something, everyone who voted gets an email notification automatically. It also works before you've launched anything, good for validating ideas without writing a line of code. Free to use, roadmap is live in 1 minute.
2026-09-17 Show HN: TabMail. Open-source AI email for Thunderbird and iPhone unrated Hi all, I'm the sole developer of TabMail. I wanted my email client to have AI features, and ended up making a Thunderbird add-on and an iPhone app. I've now open-sourced both under MPL 2.0, and I wanted to share them here to get some community feedback, if possible. I made a short video of both, since it's easier to show what they do than explain everything in a post. Hopefully you like it: https://tabmail.ai/demos/tabmail-promo.mp4 You can review a prepared reply, tell it what to change, or ask questions about your inbox and calendar. On TB, I wanted to do most of this with the keyboard. On the phone, I wanted to just talk to it :) Code: Thunderbird: https://github.com/TabMail/tabmail-thunderbird iOS: https://github.com/TabMail/tabmail-ios Note: I have the AI backend closed for now, since it does need me to fish compute from LLM providers, etc. Still, I made the email/calendar processing ZDR (zero data retention) since, as a solo dev, I didn't want to go through the headache of storing anyone's email or calendar data. The content can be sent for AI processing, but isn't kept on TabMail's servers. Search stays on-device. Anyhow, please try it out! Just trying to share how I wanted email to be with AI features :) Happy to answer questions. Downloads: https://tabmail.ai PS. The Thunderbird add-on uses the Experiments API for things that aren't supported in MV3, so I'm hosting it on my website for now.
2026-09-14 Show HN: ProofOfDonation, replace CAPTCHAs with charity donations unrated Hey, I made this self-hosted server called proof-of-donation, as an experimental alternative to CAPTCHA. It verifies email donation receipts using DKIM. Instead having users solve puzzles, you can gate signups on charity donations. Let me know what you think :)
2026-09-14 Show HN: I Built a CLI for Proton Mail, Drive, Calendar, Pass and Contacts unrated I made a command line tool for Proton. It covers Mail, Drive, Calendar, Pass and Contacts. It is one static binary for Linux, macOS and Windows. Proton doesn't have a CLI for all their web interfaces. There is one for Drive and one for Pass, but the other ones are not really there. There's no Mail CLI, Contacts or other CLIs. I wanted to have everything in one. It does logins the way the Proton apps do, with SRP. It decrypts and encrypts on your machine with Proton's own Go libraries, go-srp and gopenpgp. Your password never leaves the machine. It talks to the same API as the Proton web apps. There is no bridge and no daemon. It runs one command and exits. Some things it can do: proton mail messages list --unread proton mail messages get "Invoice #2291" proton drive items upload ./report.pdf /Documents proton calendar events list proton pass items totp github.com Every command has the same shape: proton <app> <collection> <verb>. Every command can print JSON. Every command that changes something takes --dry-run. This CLI does things the web interfaces do, in those five apps. But some things need a browser and are not here: importing from Gmail, adding a Zoom link, registering a security key and so on. VPN, Wallet, Docs, Meet, Lumo and Authenticator are not covered. Most of the code was written with LLMs as you can see. But I have an extensive test suite: 397 live tests against three real Proton accounts and a record of the 243 API endpoints they reach. Install with curl, Homebrew, winget, APT, AUR, Nix, npm or take a binary from the releases page. Feedback is more than welcome :)
2026-09-13 Show HN: Email Client with Backups unrated Hello HN, I made an email client for macOS/Linux focused on one thing: owning your emails locally. It backups .emls in maildir locally, as well as highlights mismatches in reply to address to displayed. Alternative view's for email like explorer - date/sender based. Email insights - top senders, frequency graphs. Local usage stats - so you could see how gmail is capping the 2500 Mb a day. Lots of layouts to customize to your liking. Live online demo - no need to download. Highly recommend having a look and playing around a bit. Links: - Website: https://mailvaultapp.com - Live demo: https://mailvaultapp.com/demo/?lang=en - GitHub: https://github.com/GraphicMeat/mail-vault-app - Discussions: https://github.com/GraphicMeat/mail-vault-app/discussions/1 Happy to answer any questions about the Tauri/Rust, IMAP architecture or anything else.
2026-09-12 Show HN: TriageBox – AI checker for Gmail that flags phishing and clutter unrated Chrome extension that scans Gmail for phishing/suspicious mail and helps clear inbox clutter. Free. Open to feedback.
2026-09-12 Show HN: Mutt-like mail client with terminal HTML+img, MCP, CRM & scheduled mail unrated For the past few weeks I've been working on my mail client which is behaviorally based on neomutt, but it has a unified inbox/archive/etc. which is based on a notmuch backend. neomutt was a big pain for me to use with tag based email handling, and it's really hard to get it setup and working mail moving, when using a tag based workflow. I still found a bug in maildir flag handling by two days ago, so it turns out I underestimated all the corner cases that exist, but it should be good now. There is a setup function that sets up fcc and the folder structure per account. It does things such as schedule mail with NLP. It's fully async, it's tabbed, and because the HTML client(which supports images in the terminal) is fully integrated, when you use the MCP, it converts the HTML into useful text rather than feeding full HTML. It validates s/mime, but i didn't dare implementing gpg support it. There is a lua plugin example for using external file browsers like yazi for attachment selection. It also has a CRM queue that can be used to process new contacts with a pluggable api backend(only hubspot for now). Two things that are still in flux, which is why you would probably consider this alpha software is the config structure. For example I changed the mcp config to be per account permissions, rather than simple permissions, so I can gate each account. There is still a lot to do make this production quality, but I use it as a daily driver now. https://github.com/fishman/notmutt https://fishman.github.io/notmutt/
2026-09-09 Show HN: Caveat, a self-hosted publishing and newsletter tool unrated I’ve been working on Caveat, a self-hosted publishing tool for people who want control over their newsletter’s design, subscriber data, and infrastructure. It includes a rich-text editor, autosave, reusable content blocks, publication designs, typography and colour controls, subscriber management, exports, and Resend email delivery. It includes both the editor and public website. Repo: https://github.com/CaveatJS/site Examples/docs: https://caveat-home.vercel.app/ I built the first version over a few hours across three sessions with GPT-6 Astra. I chose the features, tested the workflows, and refined the design and implementation. The sessions processed roughly 43.6M tokens, about 97% cached input. Caveat is still early: paid subscriptions, scheduling, and multi-author workflows are not implemented yet. If you publish a newsletter, what part of your workflow would prevent you from using it today?
2026-09-08 Show HN: Inbundly – Google Inbox-style bundles for Gmail (open-source) unrated A weekend project turned actively maintained fork of Inboxy; for people (and AI agents) who still miss Inbox. Website: https://inbundly.com/
2026-09-05 Show HN: Audioreality.ai – email to private daily podcast summary show unrated Hey all, TLDR: When you sign up you get an email alias @audioreality.ai that you can use to sign up for newsletters, have agents send output to, etc. Once a day you get a private podcast with a multi-host format/conversation, so it’s not a basic summary and it’s not a verbatim readout. You can configure multiple shows too, so I personally have some based on different subjects I’m interested in. I built this because I have much more opportunity to listen to content than sit and read (exercising, commuting, background noise), but I find a lot of really valuable newsletters out there. So I’ve been trying to dial in a tolerable AI-generated format to get the info out in a way that’s easy for me to consume. This opened a few adjacent use cases like having scheduled agents email research, Google News style updates, etc. (even top HN feed stuff). I’d love feedback on the format approach, the script quality, “host” behaviors/personalities, and anything else. The audio quality is a constant work in progress as I test different audio models (and I completely understand if audio AI totally creeps you out). Thanks!
2026-09-04 Show HN: Vanity Domain Generator unrated When each of my kids got to the age that they started using email and having an online presence, I got them their own vanity domain by going to a "fake word generator" and then taking the best-looking fake words and doing a registrar search for it. With my youngest son starting the process, I thought "I'll save time going back and forth and integrate the process. Surely it can't be that hard." Making it happen was easy. Making it something I would share was harder. It's implemented as a single-page app at https://vanitydomain.net, with all of the logic on the client side. It takes the top 10k words in your language's Wikipedia, and builds a Markov trigram model to make a plausable-ish word. I tried more clever things, but they were all worse. For each plausible word, it hits Cloudflare's DNS (super cheap, fast, and scalable) as a low-pass filter, then checks the definitive RDAP server if it's available. It displays the words that passed both and gives you a link to register it (not monetized; it's all good). If you know someone who might benefit from having a vanity domain with a hosting site, infinite email addresses, and control of their own online presence, this might be a fun starting point. Let me know if there are things that could make it better, or if you know of a better model for word generation. It's my fun-time project that might be a blessing to other people, so feel free to push it in a good direction.
2026-09-04 Show HN: Mainly – Self-hosted mail client built for multiple domains unrated Hey all, I built this mail client to manage my self-hosted mail across multiple domains, and it's ended up being my daily driver (i.e. it gets patched quick) and thought I'd share it again here. I wanted something that was fast to parse visually, easy to manage & customize, self-host and easily deploy, so it does all of the above. I'm an inpatient fella, so it also allows you to do things like bulk onboard domains, sort addresses into folders for visual sorting, adjust custom sender images & tags, has MCP integration and has a settings page for adjusting your search queries. Additionally if you're a postfix/dovecot user, there's a CLI script to integrate mailbox setup via the application with your server. Completely free & open-source, zero telemetry currently self-hostable only. Would love feedback and feature requests :~)
2026-09-03 Show HN: I created a privacy-focused email service unrated I built JustReceiveEmail because I don't want data collectors tracking my online activity through my email address. The idea is simple: use a different email address whenever you sign up for something, while still being able to keep that address and receive emails from it later. Privacy was the main goal. Incoming emails are encrypted before being stored, no tracking/logging is used, and the service tries to collect as little data as possible. Only a username is required to create an account. There are no ads or trackers. Instead, it costs a small fee to help keep the service running. I'd love to get feedback, especially on the privacy model and anything you think I should improve. https://justreceive.email
2026-09-02 alphaparkinc/genpark-autonomous-inbox-triage-email-dispatcher-agent-skill unrated Autonomous inbox triage email dispatcher & smart responder (AI Email Agent)
2026-09-02 alphaparkinc/genpark-event-driven-omnichannel-lifecycle-nudge-dispatcher-skill unrated Event-driven omnichannel lifecycle nudge dispatcher & SMS push (Klaviyo style)
2026-09-02 Show HN: Unitpost/email – open-source Email Components and Layouts unrated If you are using React, you've probably used or heard of React Email by Resend. Ironically once we started building Unitpost we hit the limit: React Email works when an engineer owns a .tsx file. Add a designer or an agent and you get a second copy that drifts. So we built @unitpost/email. One inbox-safe document for Outlook, Apple Mail, and Gmail. React or string TSX. 24+ transactional and marketing emails 20+ pre-built email layouts 15+ components npx skills add unitpostcom/email and the AI you already use can generate the emails.
2026-08-29 10minutemail unrated Free, temporary email for testing.
2026-08-29 FormNX unrated Create unlimited forms get unlimited submissions free of cost. Use professionally created 1000+ form templates or create forms from scratch. Get features like email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
2026-08-29 AhaSend unrated Transactional email service, free for 1000 emails per month, with unlimited domains, team members, webhooks and message routes in the free plan.
2026-08-29 anon.li Alias unrated Open source, anonymous email alias/forwarding solution with PGP encryption, reply capability, 10 random & 1 custom alias on the free plan with developer API & CLI.
2026-08-29 AnonAddy unrated Open-source anonymous email forwarding, create unlimited email aliases for free
2026-08-29 Anypost unrated transactional and broadcast email API. 3,000 emails/month free, then as low as 8¢ per 1k
2026-08-29 Atomic Mail unrated Email built for AI agents, entirely free. Programmatic inbox creation, custom domains, and full send/receive over the open JMAP standard (RFC 8620/8621); hosted MCP server available. A real mailbox service, not disposable/temporary email.
2026-08-29 SES unrated 3.000 messages/month (6mo)
2026-08-29 Bump unrated Free 10 Bump email addresses, one custom domain
2026-08-29 Burnermail unrated Free 5 Burner Email Addresses, 1 Mailbox, 7-day Mailbox History
2026-08-29 Buttondown unrated Newsletter service. Up to 100 subscribers free
2026-08-29 Canny Pigeons unrated DMARC monitoring platform with DNS drift alerts, IP threat intel and unlimited users. First domain is free - no credit card required.
2026-08-29 Conduit unrated Turn incoming emails into webhooks to trigger your API from emails. The service is completely free.
2026-08-29 Contact.do unrated Contact form in a link (bitly for contact forms)
2026-08-29 debugmail.io unrated Easy to use testing mail server for developers
2026-08-29 dkimvalidator.com unrated Test if the email's DNS/SPF/DKIM/DMARC settings are correct, free service by roundsphere.com
2026-08-29 DNSExit unrated Up to 2 Email addresses under your domain for free with 100MB of storage space. IMAP, POP3, SMTP, SPF/DKIM support.
2026-08-29 EmailGuard unrated Block disposable emails, catch typos, and validate MX records via a simple API. 100 free requests/month.
2026-08-29 EmailLabs.io unrated Send up to 9,000 Emails for free every month, up to 300 emails daily.
2026-08-29 EmailOctopus unrated Up to 2,500 subscribers and 10,000 emails per month free
2026-08-29 EmailQo Email Infrastructure Grader unrated Free email infrastructure grader that checks SPF, DKIM, DMARC and mail server configuration. Scores any domain out of 100. No signup required.
2026-08-29 Emailvalidation.io unrated 100 free email verifications per month
2026-08-29 Emitlo unrated free 12,000 emails/month, Email API and SMTP, SPF/DKIM/DMARC support, No Credit Cards are required.
2026-08-29 Engage unrated All-in-one Customer Engagement and Automation Tool (email, push, SMS, product tours, banners and more) for SaaS. Free for up to 1,000 active users per month.
2026-08-29 engagespot.co unrated Multi-channel notification infrastructure for developers with a prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.
2026-08-29 EtherealMail unrated Ethereal is a fake SMTP service, mainly aimed at Nodemailer and EmailEngine users (but not limited to). It's an entirely free anti-transactional email service where messages never get delivered.
2026-08-29 Form.taxi unrated Endpoint for HTML forms submissions. With notifications, spam blockers, and GDPR-compliant data processing. Free plan for basic usage.
2026-08-29 Formboost.app unrated Developer-first form backend with simple HTTP endpoints, 500 free submissions/month, spam protection, email notifications, and built-in Slack, Discord & Telegram integrations. No backend required.
2026-08-29 Formcarry.com unrated HTTP POST Form endpoint, Free plan allows 100 monthly submissions.
2026-08-29 Formester.com unrated Share and embed unique-looking forms on your website-no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.
2026-08-29 Forminit unrated Headless form backend for developers. The free plan allows 100 form submissions per month including file uploads, server-side field validation, email notifications, spam protection and Zapier.
2026-08-29 formlets.com unrated Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.
2026-08-29 Form Plume unrated Form Plume is a form backend for HTML and JavaScript forms. One endpoint gets you spam filtering, email notifications, file uploads, webhooks, and a clean inbox. Free for 500 submissions/mo.
2026-08-29 forms.app unrated Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with a free plan, embed your forms on a website, or use them with a link.
2026-08-29 formspark.io unrated Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
2026-08-29 Formspree.io unrated Send email using an HTTP POST request. The free tier limits to 50 submissions per form per month.
2026-08-29 Formsubmit.co unrated Easy form endpoints for your HTML forms. Free Forever. No registration is required.
2026-08-29 Formware.io unrated Create fully-responsive and captivating forms in seconds, without knowing how to code, and collect unlimited responses for free!
2026-08-29 forwardemail.net unrated Free email forwarding for custom domains. Create and forward an unlimited amount of email addresses with your domain name (note: You must pay if you use .casa, .cf, .click, .email, .fit, .ga, .gdn, .gq, .lat, .loan, .london, .men, .ml, .pl, .rest, .ru, .tk, .top, .work TLDs due to spam)
2026-08-29 ZeroSMTP unrated Free SMTP relay on the msgwing.com domain, up to 200 emails/day, no paid tier. Sends from a shared @msgwing.com address only (no custom domain). Ready-to-run code examples in 15 languages plus Windows Server/Linux/network printer setup guides.
2026-08-29 HeroTofu.com unrated Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code is required. The free plan gives unlimited forms and 100 submissions per month.
2026-08-29 Imitate Email unrated Sandbox Email Server for testing email functionality across build/qa and ci/cd. Free accounts get 15 emails a day forever.
2026-08-29 ImprovMX unrated Free email forwarding.
2026-08-29 Inboxes App unrated Create up to 3 temporary emails a day, then delete them when you're done from within a handy Chrome extension. Perfect for testing signup flows.
2026-08-29 inboxkitten.com unrated Free temporary/disposable email inbox, with up to 3-day email auto-deletes. Open source and can be self-hosted.
2026-08-29 IntoDNS.ai unrated DNS and email security analyzer that checks SPF, DKIM, DMARC, DNSSEC, BIMI, MTA-STS, and 40+ blacklists with AI-powered explanations and fix suggestions. 100% free, no signup required.
2026-08-29 KaiMail unrated Email forwarding for custom domains with ARC/DKIM signing. Free plan includes 1 domain, 1 mailbox, 300 emails/month, and up to 1MB message size. Email receiving webhook also available. Special plans for open-source projects.
2026-08-29 knock.app unrated Notifications infrastructure for developers. Send to multiple channels like in-app, email, SMS, Slack, and push with a single API call. The free plan includes 10,000 messages/mo.
2026-08-29 mailcatcher.me unrated Catches mail and serves it through a web interface.
2026-08-29 Maildroppa unrated Up to 100 subscribers and unlimited emails as well as automations for free.
2026-08-29 Maileroo unrated SMTP relay and email API for developers. 5,000 emails per month, unlimited domains, free email verification, blacklist monitoring, mail tester and more.
2026-08-29 mailsac.com unrated Free API for temporary email testing, free public email hosting, outbound capture, email-to-slack/websocket/webhook (1,500 monthly API limit)
2026-08-29 Mailtrap.io unrated Email API and SMTP with 4,000 emails/month free, limited to 150 emails/day. Email Marketing includes 500 contacts and 1,500 emails/month. Email Sandbox includes 50 test emails/month, one sandbox, and up to 10 stored emails.
2026-08-29 newreleases.io unrated Receive notifications on email, Slack, Telegram, Discord, and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub.
2026-08-29 Novu.co unrated The open-source notification infrastructure for developers. Simple components and APIs for managing all communication channels in one place: Email, SMS, Direct, In-App and Push. The free plan includes 30,000 notifications/month with 90 days of retention.
2026-08-29 OneSignal unrated 10,000 emails/month,No Credit Cards are required.
2026-08-29 Orbisearch unrated Free bulk email validator, 100 validations per day, no signup required.
2026-08-29 Parseur unrated 20 free pages/month: Extract data from PDFs, emails. AI powered. Full API access.
2026-08-29 Parsio.io unrated Free email parser (Forward email, extract the data, send it to your server)
2026-08-29 Postmark unrated 100 emails/month free, unlimited DMARC weekly digests.
2026-08-29 Proton Mail unrated Free secure email account service provider with built-in end-to-end encryption. Free 1GB storage.
2026-08-29 Reloop unrated Transactional email API and SMTP for developers. Free plan: 3,000 emails/month, 200 emails/day, one custom domain and one agent inbox.
2026-08-29 Resend unrated Transactional emails API for developers. 3,000 emails/month, 100 emails/day free, one custom domain.
2026-08-29 Runsite unrated European PaaS with automated deployments from GitHub for web services or static sites (1 web 0.1 vCPU/256 MB free), managed PostgreSQL and Valkey(Redis) (30 days for free), Transactional Email (3,000 emails/month free), S3 compatible storage (5 GB/free), all what you need for start your web site. Servers located in Germany.
2026-08-29 SendBridge Mail Tester unrated Free email deliverability test with no signup. Generates a unique inbox address, then analyzes SPF, DKIM, DMARC, Rspamd spam score, 23+ RBL blacklists, reverse DNS, and content quality. Unlimited tests, results in seconds, shareable report pages.
2026-08-29 Sendpulse unrated 500 subscribers/month, 15,000 emails/month free
2026-08-29 SimpleLogin unrated Open source, self-hostable email alias/forwarding solution. Free 10 Aliases, unlimited bandwidth, unlimited reply/send. Free for educational staff (student, researcher, etc.).
2026-08-29 SMTPfast unrated SMTPfast is a simple email API for developers with a free tier that includes 3,000 emails/month, 1 domain, and 1,000 contacts, with no credit card required.