DMARC monitoring
DMARC, done before the auditor asks.
Forwarded mail forensics, automatic source classification, monthly auditor-ready PDFs. Built by a Head of Security at a regulated fintech.
v=DMARC1
v=DMARC1; p=quarantine; rua=mailto:reports@your.tld; pct=100; aspf=s; adkim=s - We collect RUA reports and classify each source by SPF/DKIM/disposition.
- We recommend the next policy (none → quarantine → reject) from data.
- Monthly PDF ready for SOC 2 / ISO 27001 / LGPD evidence.
Why DMARC is no longer optional.
Google and Yahoo's October 2023 sender requirements push every brand toward enforced DMARC. PCI DSS 4.0 (March 2025) makes DMARC alignment expected for cardholder-data domains. Most SMBs deploy DMARC, then never look at the reports — until the day they need them.
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Oct 2023
Google + Yahoo bulk-sender requirements
Senders >5k msgs/day to Gmail/Yahoo must align SPF, DKIM, and DMARC with p=none minimum.
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Mar 2025
PCI DSS 4.0 §12.5.3
Domains touching cardholder data must publish DMARC and monitor enforcement.
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Ongoing
LGPD / SOC 2 / ISO 27001
Audits expect monthly monitoring evidence, not just published configuration.
How Atalaia solves it.
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01
Ingest
Point each domain's RUA to {tenant}@reports.atalaia.observer.
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02
Aggregate
A dedicated parser classifies every source by SPF, DKIM, and disposition.
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03
Monitor
Timeline, top sources, alerts when DNS changes or alignment drops.
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04
Recommend
Policy ramp guidance (none → quarantine → reject) backed by data, not opinion.
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05
Prove
Monthly exec summary and audit-ready PDF generated automatically.
Free DMARC checker
Check SPF, DKIM, and DMARC for any domain. No login. No tracking. Indexable, shareable.
Pricing
Transparent. No "talk to sales" on Starter or Pro. Cancel any time.
Comparison
| Feature | Atalaia | dmarcian | EasyDMARC |
|---|---|---|---|
| Entry paid plan | $19/mo | $19/mo | $39.99/mo |
| Public free tier (1 domain) | Yes | Yes | Yes |
| Multi-tenant / MSP white-label | From $299/mo | MSP plan, custom | MSP plan, custom |
| SOC 2 / ISO 27001 audit pack | Included on Business | Not advertised | Not advertised |
| PT-BR content / BR-LGPD support | Yes | No | Partial |
| Open source / self-host | No | No | No |
Factual table from public competitor pricing pages, May 2026. Prices and features change — always verify against official sources.
FAQ
- Why monitor DMARC if it's already published?
- Publishing is configuration; monitoring is control. Audits and new requirements expect continuous evidence, not just the DNS record.
- Do you deliver auditor-ready reports?
- Yes. Monthly per-domain PDF with timeline, sources, and disposition — ready to attach to SOC 2 / ISO 27001 / LGPD evidence.
- Does it work for multiple clients (MSP)?
- Yes, on the MSP plan. Multi-tenant, white-label, per-client billing.
- How long until reports start flowing?
- After pointing the RUA record, reports typically arrive within 24h from major providers (Google, Yahoo, Microsoft).