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Google is rejecting unauthenticated email. Check if you're affected. PCI DSS 4.0 mandates DMARC. Prove compliance in one click. NIS2 fines reach €10M. Is your domain ready?

DMARC Monitoring That Tells You What to Fix

Check your domain. Fix what's broken. Prove you're compliant. Monitor SPF, DKIM, and DMARC alongside 6 more email authentication protocols from one dashboard.

110+ GitHub Stars Community-backed project, production-grade platform
22 RFC Implementations Strict protocol compliance, no shortcuts
9 Protocols Monitored All 9 protocols — 7 included free, DANE & ARF from Pro
5.5M Domains Analyzed Research-grade data from real-world scans

Most domains are exposed. Is yours?

Without DMARC enforcement, your domain is vulnerable to email spoofing — where attackers send fraudulent messages that appear to come from you. Domain spoofing erodes customer trust and triggers compliance failures. Google, Microsoft, and Yahoo now reject unauthenticated email. PCI DSS 4.0 made DMARC mandatory. NIS2 carries penalties up to €10M.

70%

of domains lack any DMARC record

Based on our scan of 5.5 million domains
12.8%

of implementations stall at p=none

Based on our scan of 5.5 million domains
$4.88M

average cost of a data breach

IBM Cost of Data Breach 2024

DMARCguard provides email spoofing protection that takes you from exposed to enforced — with clear steps, not just dashboards.

DMARC Enforcement: From p=none to p=reject

DMARC enforcement is the process of moving your domain's DMARC policy from monitoring (p=none) through quarantine (p=quarantine) to full rejection (p=reject) — where spoofed emails are blocked entirely.

Most domains stall at p=none — leaving them without email spoofing protection. Without visibility into who's sending on your behalf, tightening policy means risking legitimate mail getting blocked.

DMARCguard solves this with a three-stage enforcement workflow:

1
Discover

We identify every sending source by name (Mailchimp, Google Workspace, SendGrid — not raw IPs) so you know exactly who's authorized.

2
Validate

Our policy wizard shows you what will break before you change anything. Review alignment failures, fix SPF/DKIM misconfigurations with our DMARC generator, and confirm every legitimate sender passes.

3
Enforce

Graduate to p=reject with confidence. Ongoing monitoring alerts you if anything changes after enforcement.

Most domains reach p=reject in 6 weeks with guided enforcement.

Built for the teams that own email security

Whether you're proving compliance, managing client domains, or automating infrastructure — DMARCguard speaks your language.

IT Security Teams

PCI DSS 4.0 deadline hit. Get compliance evidence in one click. Move from p=none to p=reject with guided enforcement. Exportable PDF reports for your auditor.

See plans →

Managed Service Providers

200 domains, one dashboard. Bulk import via CSV, apply policy templates across clients, white-label the interface. API-first architecture for full data portability.

Talk to us about MSP pricing →

DevOps & Platform Teams

REST API at every tier. 17 MCP tools for your AI stack. Full CSV/JSON export. Zero vendor lock-in.

See the protocol stack →

Email Spoofing Protection Built on RFC Standards

RFC-strict implementation

Every parser maps directly to the specification. DMARC (RFC 7489), SPF (7208), DKIM (6376), MTA-STS (8461), TLS-RPT (8460), ARC (8617), DANE (7672).

Your data stays yours

SOC 2-ready architecture. GDPR by design. Full audit trail on every action.

Compliance without the guesswork

PCI DSS 4.0 Req 5.4.1, NIS2 alignment, exportable evidence for auditors — all built in.

50+ services identified automatically

Mailchimp, SendGrid, Google Workspace, Amazon SES — DMARCguard names your sending sources instead of showing raw IP addresses.

What you get that others don't

We built DMARCguard around the gaps every other tool leaves open.

What you getDMARCguardEasyDMARCdmarcianPowerDMARC
5 domains for under $50/mo$39/mo~$90/mo$240/mo~$60/mo
All 9 protocols — 7 free, 2 from Pro7 free, all 9 from $39/moGatedDMARC onlyGated
See named senders, not raw IPs50+ servicesPartialPartial
Step-by-step remediation guidanceActionable fixesBasicBasicBasic
ARC chain analysisFull RFC 8617
DANE/TLSA validationFull RFC 7672
API access without enterprise pricingPro tierEnterprise onlyPlus ($2,388/yr)Enterprise only
Transparent, published pricingAll tiers publicHidden tiers

One Platform for DMARC Monitoring, Enforcement, and Compliance

Whether you're enforcing policy, proving compliance, or integrating with your stack — DMARCguard meets you where you are.

  • Named sender identificationSee "Mailchimp" and "Zendesk", not raw IP addresses
  • Step-by-step remediationActionable fixes, not just red/green dashboards
  • A–F compliance scoringKnow exactly where every domain stands
  • Smart alertingEmail, Slack, Teams, webhooks — get notified before issues escalate
DMARCguard dashboard showing compliance grade, named sender table, and trend chart
  • Named sender identificationSee "Mailchimp" and "Zendesk", not raw IP addresses
  • Step-by-step remediationActionable fixes, not just red/green dashboards
  • A–F compliance scoringKnow exactly where every domain stands
  • Smart alertingEmail, Slack, Teams, webhooks — get notified before issues escalate
DMARCguard dashboard showing compliance grade, named sender table, and trend chart
  • PCI DSS 4.0 audit-readyRequirement 5.4.1 covered out of the box
  • Exportable PDF reportsOne-click evidence for auditors
  • Full audit trailEvery change logged, every action timestamped
  • Role-based accessGive auditors read-only views, admins full control
PCI DSS compliance view with score card and Export PDF button
  • REST API at every tierNo enterprise paywall for programmatic access
  • AI-ready with MCP tools17 tools for LLM-powered monitoring
  • Webhooks & alertingPush events to Slack, Teams, PagerDuty, or any URL
  • GitHub integration & CI/CD hooksAutomate domain onboarding and policy changes from your pipeline
API and webhook configuration with MCP tools listing

How DMARC Monitoring Works

1

Discover

Add your domain and publish one DNS record. We scan your configuration and start collecting DMARC aggregate reports within minutes.

Onboarding screen with domain input field and Add Domain button
2

Configure

See exactly what’s misconfigured. Get copy-paste DNS fixes for SPF, DKIM, and DMARC — with our policy wizard guiding each step.

DNS recommendations view with copy-paste fix cards for SPF, DKIM, and DMARC
3

Enforce

Graduate from p=none to p=reject with confidence. Monitor ongoing compliance and get alerted when anything changes.

Policy wizard enforcement step showing p=none to p=reject progression

Most domains reach p=reject in 6 weeks with our guided policy wizard.

DMARC Compliance Evidence for PCI DSS 4.0 and NIS2

PCI DSS 4.0 Requirement 5.4.1 mandates DMARC for any organization handling payment data. NIS2 carries penalties up to €10M for non-compliance. DMARCguard provides audit-ready compliance evidence — including compliance scoring, PDF reports for auditors, and a full audit trail of every policy change. Track your DMARC compliance status across all domains from one dashboard.

PCI DSS 4.0 Ready Req 5.4.1 compliance
NIS2 Compliant EU Directive alignment
RFC Standards Every parser validated
GDPR Ready Privacy by design

One plan. Every protocol. Every feature.

Start free with 2 domains. Go Pro for everything — $39/mo.

Founding Member — $39/mo forever. First 100 customers lock in 40%+ off. Permanently.

Hobbyist

For individuals getting started

Free forever

For Personal Projects

  • 2 domains
  • 7 protocols
  • 30 days data retention
  • 5 AI queries/day
  • Community support
Start Free

Enterprise

Unlimited scale with dedicated support

Custom

Custom plan · Dedicated support

  • Unlimited domains
  • Unlimited users
  • Unlimited retention
  • SAML SSO + SCIM
  • SIEM integrations
  • Priority support (4hr SLA)
Talk to Us

We built DMARCguard because every DMARC monitoring tool we tried made the same mistake: they showed us data and expected us to figure out the rest. We read every RFC. We mapped every protocol. Then we built the tool we wished existed — one that tells you exactly what's wrong and exactly how to fix it.

We built it for clarity — because complexity shouldn't mean ugly, and security tools shouldn't require a PhD to use.

— The DMARCguard Team

110 GitHub stars in organic growth. Born from frustration. Built for clarity.

Frequently asked questions

What does DMARCguard actually do?

DMARCguard monitors your email authentication protocols — all 9 of them (DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, ARC, DANE, ARF) — from a single dashboard. It collects your DMARC aggregate reports, identifies who’s sending email on your behalf, and gives you step-by-step guidance to reach full enforcement (p=reject).

What if I need help getting to p=reject?

That’s exactly what we’re built for. DMARCguard identifies every authorized sender, flags misconfigurations, and gives you a step-by-step path from p=none through p=quarantine to p=reject. Paid plans include priority support for enforcement guidance.

Do I need to be technical to use it?

No. DMARCguard translates raw XML reports into plain-language insights. You’ll see sender names like “Mailchimp” and “Google Workspace” instead of IP addresses, and every issue comes with a clear recommended action.

Does DMARCguard help with PCI DSS 4.0 and NIS2 compliance?

Yes. PCI DSS 4.0 Requirement 5.4.1 mandates DMARC. DMARCguard provides compliance scoring, audit trails, and exportable PDF reports that serve as evidence for auditors. Our architecture also aligns with NIS2 and GDPR requirements.

How is DMARCguard different from EasyDMARC, dmarcian, or PowerDMARC?

Three key differences: (1) 7 core protocols free and all 9 from Pro — competitors gate even basic protocols behind premium plans, (2) we provide actionable remediation guidance, not just monitoring dashboards, and (3) our pricing is 50–80% lower for comparable coverage. See the full comparison above.

What’s the difference between the free plan and paid plans?

The Free plan covers 2 domains with 7 core protocols (DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, ARC), 30 days data retention, and email alerts. Pro and Enterprise add DANE and ARF for the full 9-protocol stack, plus more domains, 10 team members, longer retention, compliance scoring, API access, PDF reports, and priority support.

How long does setup take?

Under 2 minutes. Add your domain, publish one DNS TXT record, and reports start flowing in. DMARCguard scans your existing DNS configuration immediately and shows your security grade before the first report arrives.

Can my team collaborate on this?

Yes. Pro supports 10 team members and Enterprise is unlimited. Role-based access lets you give auditors read-only views while admins manage policy changes. Every action is logged in the audit trail.

What happens to my data?

Your data is stored securely with encryption at rest and in transit. Retention depends on your plan (30 days to unlimited). We’re SOC 2-ready, GDPR-compliant by design, and you can export or delete your data at any time.

Is there a contract or cancellation fee?

No. All plans are month-to-month (or annual with 20% savings). Cancel anytime — no penalties, no lock-in. Your data remains exportable for 30 days after cancellation.

Is Your Domain Protected from Email Spoofing?

Check SPF, DKIM, and DMARC alongside 6 more protocols in 30 seconds. No signup required.

Google, Yahoo, and Microsoft are already rejecting non-compliant senders.

Your domain is either compliant — or it's a liability.

PCI DSS 4.0 made DMARC mandatory. NIS2 carries penalties up to €10M. The enforcement deadline isn't coming — it's here.

Protect Your Domain — Free

No credit card. No sales call. Full protocol coverage in 2 minutes.