Check your domain free in seconds. Then get the exact DNS records and click-by-click steps for your email provider and DNS host, so your email is trusted by Gmail, Yahoo and Microsoft.
The check runs in your browser using public DNS (Google/Cloudflare). We don't store your domain unless you buy.
One-time payment. No subscription.
Delivery: instantly, on screen, right after payment. Bookmark the page and it regenerates from live DNS any time.
Guarantee: 30-day money back if SPF and DMARC don't pass after you follow the pack.
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Payments are processed by Polar, the merchant of record, which handles tax and receipts.
Enter your domain. We read your public DNS and show what's wrong.
Pay once and your fix pack appears on screen, built from your live DNS.
Copy the records into your DNS host. SPF and DMARC pass, or you get a refund.
Since 2024, Gmail and Yahoo require senders of bulk email (Google defines this as roughly 5,000+ messages a day to their users) to authenticate with SPF and DKIM and publish a DMARC policy. Microsoft applies similar requirements to bulk senders to Outlook.com consumer addresses from 2025. Even smaller senders benefit: unauthenticated mail is more likely to be junked, and without DMARC anyone can send fake email in your name.
No. DMARC starts in monitor mode, which doesn't block or change delivery of any mail.
No. You make the changes yourself in your own DNS host.
The pack tells you exactly what to ask them.
30 days. If SPF and DMARC don't pass after you follow the pack, you get your money back. Details.