Life & fun · alternatives · 2026
24 alternatives to Hello Inbox – Free email deliverability checklist for marketers
After struggling with low open rates in my small lifestyle software business, I decided to go down the rabbit hole that is email deliverability, learned a bunch of things I didn't know even after being in tech for a decade. A/B tested a bunch of things and finally got good results. I then decided to put together a comprehensive checklist of everything I learned and got me results to share with others. Now I help companies fix poor email deliverability and boost their email ROI. I want this checklist to be a repository of email best practices so I'm always looking to improve and update…
Hello Inbox is a free email deliverability checklist designed for marketers and companies struggling with low open rates. It compiles best practices and testing strategies to help users improve email performance and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Hello Inbox – Free email deliverability checklist for marketers launched in 2023; newer entries below may have overtaken it.
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Hello Inbox▲283Hey HN, I built an email deliverability SaaS with a RAG system. It's trained on all my knowledge and hundreds of real deliverability use cases from 4+ years experience as an Email Deliverability Specialist on Upwork. It solves a frustration problem a lot of businesses are experiencing. I'm looking for feedback so let me know in the comments.
Aug 2026 · helloinbox.email · its alternatives →
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A free step by step guide to maximize email deliverability
2019 · bounceless.io · its alternatives →
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Inbox Zero▲821Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.
2023 · getinboxzero.com · its alternatives →
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Folderly▲747Get revenue from every email campaign - 99.9% inbox rate
2023 · folderly.com · its alternatives →
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Zero▲845Hi HN, I’m Nizar, and I’m building Zero (https://0.email) — an AI-powered email client that manages your inbox for you. Email hasn’t changed in decades, even though the way we work has. The average knowledge worker now spends close to 30% of their week on email, constantly reacting, replying, and sorting through noise. It’s become one of the biggest productivity sinks in modern work. At the same time, AI has transformed how we write, plan, and collaborate — yet our inboxes are still stuck in the past. I built Zero to fix that. Zero automatically prioritizes, organizes, and even…
2025 · 0.email · its alternatives →
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Make sure your emails land in the inbox, not spam
2021 · reply.io · its alternatives →
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Warmup Inbox▲204Free email spam checker & inbox placement tester
2023 · warmupinbox.com · its alternatives →
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Mailook▲309Identify & fix your email deliverability issues for free
2021 · mailook.ai · its alternatives →
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Preview, analyze & test emails with one click
2022 · inboxpirates.com · its alternatives →
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How-to send B2B emails without triggering spam filters
2020 · belkins.io · its alternatives →
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I’m thrilled to finally be able to show everyone what we’ve been working on for the last 2 years. We’re re-inventing the email experience to help you email smarter and faster, so you can get more done, and maybe even actually enjoy your inbox. When we launched Firebase here 10 years ago, HN was tough but fair, and I expect no less this time around! I hope you’ll check out what we’ve built and share your feedback. I’ll be around here all day and am happy to answer any questions. Let us know what you think!
2022 · shortwave.com · its alternatives →
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MailerCheck 2.0▲145All-in-one email deliverability platform for businesses
2023 · mailercheck.com · its alternatives →
- 16OS
Hi HN! We’re Aleem, Chris, Borys, Meichen and Zach from Streak (YC S11) and today we’re open sourcing our InboxSDK https://www.inboxsdk.com, which makes it easy to build apps for Gmail. Over 1.8B users spend their days in Gmail! Having your app built into the Gmail workflow is a better user experience and gives you great user retention. InboxSDK gives you a high-level, declarative API to insert your UI into Gmail without having to directly manipulate the DOM yourself. End users install a browser extension to use your app. The SDK can add UI to multiple areas of Gmail. For example,…
2022 · its alternatives →
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Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…
Jul 2026 · captchainbox.com · its alternatives →
- 18KL
Always loved posterous, but I thought it would be really cool if somehow you could treat email addresses like twitter hashtags and usernames. So after 2 days of coding, it's here and works. It's not pretty, but it's really neat & kinda addicting. Anyone can email or text anything to _ _ _ _ _ [email protected] and it immediately creates a public page and an email address. For example, say you wanted to create a page for coding errors called fmlcodesucks, you could just text or email it to [email protected] and it instantly posts your picture to that page and lets anyone contribute by…
2012 · its alternatives →
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Free omnichannel customer service software
2020 · bird.com · its alternatives →
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Your ultimate guide to get your emails delivered at scale
2021 · amplemarket.com · its alternatives →
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1SecMail▲112Free disposable email that actually arrives in real time
2025 · tmaily.com · its alternatives →
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Fix your inbox instantly with smart filters
2025 · unfuck.email · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →