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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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?Frequently asked questions

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.
Related Monitor Types
📧MX Health Monitoring📡DNS Record Monitoring🚫Blacklist / DNSBL Monitoring
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