SPF / DMARC Monitoring

Ensure your email authentication records are correctly configured.

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SPF/DMARC monitoring checks your domain's email authentication DNS records. Missing or misconfigured SPF and DMARC records allow attackers to spoof your domain in phishing emails.

How it works

Uptrue queries TXT records for your domain (SPF) and _dmarc.yourdomain.com (DMARC) on each check cycle. Missing records trigger a critical alert. Weak policies (p=none for DMARC, missing all mechanism for SPF) trigger warnings.

What Uptrue checks

SPF record (v=spf1)

SPF all mechanism (-all, ~all)

DMARC record (v=DMARC1)

DMARC policy strength (p=none warning)

Alert conditions

No SPF record found

No DMARC record found

DMARC p=none (monitoring-only, no enforcement)

Why this matters

Email spoofing attacks impersonate your brand. Google and Yahoo now require SPF and DMARC for bulk senders. Without them, legitimate emails may be marked as spam.

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Free plan · 3 monitors · No credit card required

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Got questions?

Frequently asked questions

Everything you need to know about Uptrue — no fluff.

What's the difference between SPF and DMARC?

SPF specifies which servers can send email for your domain. DMARC tells receiving mail servers what to do if SPF or DKIM checks fail (quarantine or reject).

My DMARC is p=none — is that a problem?

p=none means monitoring-only — no enforcement. We flag it as a warning. Moving to p=quarantine or p=reject protects your brand.

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Join teams who monitor their infrastructure with Uptrue. Free plan, no credit card required. Want to spot-check first? Run our free SPF & DMARC checker.

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