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.
Recorded from the real site on a fictional domain (yourcompany.example) with simulated DNS. No customer data.
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.
See a sample pack for a fictional domain →
Reads your public DNS and tells you what is wrong, in plain English, with a score. Enough if you know your DNS host and just need to know what to look at.
Writes the fix: the exact records for your domain, the menu path in your email provider and DNS host, what to do first, and how to check it worked. Built for people who would rather not research it.
Free checkers such as MXToolbox are diagnostic tools: they show what is wrong. We don't claim to find more than they do; the pack's value is the written, step-by-step fix.
Web agencies and IT consultants often set up the same three records for every new client domain. Tell us roughly how many domains you handle and what you would want (a per-domain price, a bundle, a white-label report) and we will reply with an offer. No obligation, and your message is not shared.
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.