Life & fun · September 16, 2023
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 – Free email deliverability checklist for marketers launched on September 16, 2023 with 37 votes, #1,320 of 4,228 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
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 ROI. The tool draws from the creator's experience troubleshooting deliverability issues in their own business and consolidates actionable recommendations in one reference guide that is continuously updated based on user feedback.
written from the facts on this page · September 2026
From the sources
Maximize inbox placement for email marketing campaigns — backed by a Top-Rated expert.
Most marketers have inbox problems they don't know about. Here's what's hurting your campaigns right now: Your carefully crafted emails never reach the inbox. You're losing 30-50% of potential revenue. Broken authentication records make email providers suspicious. They'll flag you as a potential spammer. Invalid addresses and unengaged subscribers each hurt your sender reputation. Once your domain reputation drops, recovering takes weeks or months. Prevention is 10x easier than repair. 1 expert and 9 tools working together with one mission: getting your emails into the inbox. Get instant, expert-level answers to any deliverability question. Our AI learned from thousands of real cases. It…from helloinbox.net
In the maker’s words, at launch
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…
Does a similar job
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Hello InboxAug 2026 · helloinbox.email · ▲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.
Reaching The Inbox2019 · bounceless.io · ▲112A free step by step guide to maximize email deliverability
Inbox Zero2023 · getinboxzero.com · ▲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.
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Source: Show HN post ↗ · launch text quoted in part
