I spent years in email support watching businesses get blindsided by deliverability failures. So I built the tool I wished they all had.

The problem I kept watching happen

For years I worked in technical support and account management at a major

email marketing platform. Every week, someone would open a ticket that

looked like this:

> "Our open rates dropped from 35% to 4% overnight. We didn't change

> anything. What's happening?"

And every time, the answer was something that had been silently brewing

for weeks — a blacklisted sending IP, a broken SPF record after a DNS

migration, a DMARC policy rejecting legitimate emails, a domain flagged

for low engagement.

The client had no idea. No monitoring, no alerts. By the time they

reached us, the damage was done.

The worst part? The tools to catch this existed. MXToolbox, DMARC

analyzers, blacklist checkers — they were all out there. But they were

scattered across a dozen different sites, required manual checking, and

gave no alerts when something changed. Nobody does that consistently. So

problems go undetected for weeks while revenue quietly bleeds out.

I saw it happen hundreds of times. And I kept thinking:

someone should build one tool that watches all of this automatically.

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So I built it

I'm a developer as well as an email marketing professional, so eventually

I just sat down and built it myself.

SendSurety is an email deliverability monitoring platform that:

✅ Continuously checks your SPF, DKIM, DMARC, MX records

✅ Monitors 30+ global blacklists in real-time

✅ Parses your DMARC XML reports to show exactly who is sending on your

behalf (and flags spoofing attempts)

✅ Connects to your ESP (Amazon SES, Mailgun, SendGrid) and automatically

correlates your delivery metrics with your domain health

✅ Alerts you instantly via Slack or email the moment something goes wrong

The core idea: **you should never find out about a deliverability crisis

from your customers. Your monitoring tool should tell you first.**

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Where I am now

I launched today on Product Hunt and I'm running a free public beta for

the next 3-4 months. Everything is free — no credit card, no limits.

After the beta I'll move to a paid model ($19 / $49 / $99 per month), and

beta users will get a permanent founding-member discount.

the runway to survive the beta is minimal. The plan is to exit beta with

a solid user base that's already relying on the product daily.

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Honest current status

- ✅ Product is live and working

- ✅ Launched on Product Hunt today

- 🔄 Revenue: $0 (intentional — free beta)

- 🔄 Users: Just getting started

- 📍 Goal: 500 active users by end of beta

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What I'd love from this community

If you send emails from a custom domain — whether for your SaaS, your

newsletter, or your agency clients — I'd genuinely love for you to try it

and tell me what's missing or broken.

👉 https://www.sendsurety.com

Happy to answer any questions about the build, the stack, or the

deliverability space in the comments. 🙏