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DMARCPro
Client-Side DMARC & SPF Generator with 10-Lookup Tracker
Generate RFC-compliant DMARC and SPF DNS records in seconds. 100% free, browser-native tool with live Cloudflare DoH domain inspection, recursive 10-lookup tracker, and SPF merger. Comply with 2026 Google and Yahoo bulk sender requirements.
Hi Product Hunt,
A few weeks ago I had to configure DMARC and SPF for a domain to comply with the Google/Yahoo/Microsoft bulk sender mandates.
I just wanted to generate a simple TXT record, but almost every tool out there required a work email, phone number, or forced me into a sales funnel for an enterprise plan.
Even worse, none of them clearly handled the RFC 7208 10-DNS-lookup limit. When you start chaining providers (for instance, Mailgun alone recursively consumes 5 lookups, Zoho eats 5, and Klaviyo takes 3), you easily exceed 10 lookups without realizing it. The result is a silent PermError, and suddenly legitimate transactional emails go straight to spam.
So I built DMARCPro as a fast, private utility for myself and decided to open it up:
- No signups or tracking: Everything runs client-side in your browser. No backend databases cataloging your domains.
- Live DoH inspector: Queries Cloudflare (1.1.1.1) and Google Public DNS directly over HTTPS to verify records in real time.
- SPF recursion meter: Calculates actual nested DNS lookup weights so you know if you're hitting the 10-lookup ceiling before publishing.
- Clean merger: Combines multiple provider TXT strings into one valid record and deduplicates overlapping mechanisms.
- Updated for RFC 9989: Deprecated tags like pct are cleaned up, with support for np= and test mode.
It’s completely free and requires zero login.
I'd really appreciate any feedback on edge-case DNS setups, resolver quirks, or additional providers you'd like to see added. Thanks!
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About DMARCPro on Product Hunt
“Client-Side DMARC & SPF Generator with 10-Lookup Tracker”
DMARCPro was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #154 on the daily leaderboard. Generate RFC-compliant DMARC and SPF DNS records in seconds. 100% free, browser-native tool with live Cloudflare DoH domain inspection, recursive 10-lookup tracker, and SPF merger. Comply with 2026 Google and Yahoo bulk sender requirements.
DMARCPro was featured in Email Marketing (33.6k followers), Developer Tools (521.5k followers) and Security (3k followers) on Product Hunt. Together, these topics include over 100.7k products, making this a competitive space to launch in.
Who hunted DMARCPro?
DMARCPro was hunted by 유영무. 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.
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