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Is your sending domain
actually configured right?

Paste your sending domain. We'll run a live SPF, DKIM, DMARC, and MX audit using Cloudflare DNS — and tell you exactly what to fix.

We don't store the domain you check. Lookups go directly to Cloudflare's public DNS.

What we check

  • · MX records (mail server config)
  • · SPF (which servers can send for you)
  • · DKIM (cryptographic signing — common selectors)
  • · DMARC (policy + enforcement level)

Why it matters

Misconfigured SPF, DKIM, or DMARC is the #1 reason transactional and marketing email lands in spam. ISPs treat unauthenticated mail as suspicious — even from real senders. A 30-second audit catches what your ESP setup may have missed.