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.
Stop paying monthly SaaS traps: Competitors like MXToolbox charge $129 to $399/month ($1,548–$4,788/yr) on annual contract locks. Email Fix Pack delivers the exact lifetime fix for a flat $ once-off. No monthly subscription, no hidden fees.
Instant browser delivery. Copy, paste, and pass.
Delivery: Instantly on screen right after payment. Bookmark the link and it regenerates from live DNS any time.
🛡️ 100% "In-Box or It's Free" 30-Day Guarantee
Apply your fix pack. If your domain does not pass Google/Yahoo SPF and DMARC authentication within 30 days, email us for a 100% refund. You keep the pack. Zero risk.
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Processed securely by Polar.sh (Merchant of Record). Instant digital delivery.
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.
Sending via multiple tools (e.g. Google Workspace + Shopify + Klaviyo)? Select your active providers below to generate a single combined SPF record strictly under the 10-lookup limit:
v=spf1 include:_spf.google.com include:shops.shopify.com include:klaviyomail.com ~all
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.