Launch: ReplyBoost — Automatically boost your email deliverability with one simple reply
Hey Indie Hackers,I just launched ReplyBoost — a tiny tool that helps your important emails actually reach your users instead of dying in spam or Promotions.The ProblemEven with perfect SPF/DKIM setup, many welcome emails, password resets, and billing notifications still get buried. This leads to frustrated users and damaged sender reputation.The SolutionReplyBoost automates the smartest deliverability hack in the indie community:
Send a friendly “Reply Plz” email right after signup.When a user replies (even with just “hi”), it creates a strong positive signal that dramatically improves long-term inbox placement and sender credibility. HowIt Works
Connect Resend, Postmark, Mailgun, or SES in 2 minutes
Add one webhook on new user signup
Automatic “Reply Plz” email + reply tracking
Set once, benefit forever
Built specifically for indie hackers and small SaaS founders who don’t want another complicated deliverability tool.I created this because I was tired of manually implementing this hack on every product I build — and tired of getting “I never got your email” messages.Try it here: https://send-reply-shine.vercel.app/ Free tier available. No credit card required.Would love your feedback. Have you tried the manual “reply plz” method before? Did it work for you?Looking forward to your thoughts!
Hey, just wanted to say — your product looks really impressive. It feels useful, clean, and like something that can actually help people solve a real problem.
I’m building Everyday Tiny Tools — a marketplace for small useful web tools, mini apps, calculators, generators, AI tools, productivity helpers, and simple utilities.
The idea is to give independent creators a real place to showcase their tools, get discovered, and maybe even earn from them.
If you’ve built something small and useful, I’d love to invite you to list it here: EverydayTinyTools.com
Tools can be listed as free, or as a simple one-time purchase through the platform.
And if you have any questions, feel free to reach out anytime: nuchem@lightboltlab.com
Really like what you’re building — wishing you a lot of success with it.
Interesting launch.
The thing I'd be careful with is that improving deliverability and creating willingness to pay are not necessarily the same problem.
A founder can agree the tactic works and still not feel enough urgency to install another tool.
That sounds subtle, but it tends to affect who buys, when they buy, and what they believe they're paying for.
I wouldn't make that call casually in a thread.