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MailTest
Debug email deliverability with 11 checks
SPF ✅ DKIM ✅ DMARC ✅ — yet your emails still land in spam? Most tools just say "DKIM failed" without explaining WHY. MailTest goes deeper: 11 technical checks + actionable insights that show you exactly what's broken and how to fix it. Self-hosted, open source (after 100 users), built for developers who need real answers, not just red/green checkmarks. Try it free: 3 tests/day, no credit card.
👋 Hey Product Hunt!
I'm Sabahattin, co-founder at Scuton, building from Baku.
**Why I built MailTest:**
3 months ago, I was debugging why our transactional emails kept hitting spam. SPF passed. DKIM passed. DMARC passed. Every tool said "✅ All good" — but Gmail still marked us as spam.
Turns out: most email testing tools only check IF your records exist, not WHY they're failing in real-world scenarios.
**What MailTest does differently:**
✅ 11 deep technical checks (not just SPF/DKIM/DMARC)
✅ Actionable insights — not just "DKIM failed", but "Your DKIM selector is missing, here's how to fix it"
✅ Self-hosted — your email data never leaves your infrastructure
✅ Real-time analysis — send test email, get results in seconds
✅ CI/CD integration — block deployments if deliverability drops
**Current status:**
- Free tier: 3 tests/day (no credit card)
- Pro: $19/mo Early Access (200 tests/mo)
- Open source release planned after 100 users (transparency commitment!)
**What I need from you:**
- Try it and tell me what breaks 🐛
- What checks am I missing?
- Would you use this in your CI pipeline?
Built with NestJS + Next.js 15. Self-hosted via Docker Compose.
👉 Try it: https://mailtest.scuton.com
Thanks for checking it out! 🚀
About MailTest on Product Hunt
“Debug email deliverability with 11 checks”
MailTest was submitted on Product Hunt and earned 1 upvotes and 1 comments, placing #143 on the daily leaderboard. SPF ✅ DKIM ✅ DMARC ✅ — yet your emails still land in spam? Most tools just say "DKIM failed" without explaining WHY. MailTest goes deeper: 11 technical checks + actionable insights that show you exactly what's broken and how to fix it. Self-hosted, open source (after 100 users), built for developers who need real answers, not just red/green checkmarks. Try it free: 3 tests/day, no credit card.
On the analytics side, MailTest competes within Open Source, Email Marketing and Developer Tools — topics that collectively have 612.7k followers on Product Hunt. The dashboard above tracks how MailTest performed against the three products that launched closest to it on the same day.
Who hunted MailTest?
MailTest was hunted by Sabahattin Kalkan. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of MailTest including community comment highlights and product details, visit the product overview.
Sabahattin Kalkan