Tool

DMARC monitoring for sender inventory and enforcement.

Collect DMARC reports, label known and unknown senders, inspect alignment, and move toward enforcement with evidence instead of guesswork.

Open DMARC docsMonitor domains

RUA

aggregate reports

TLS-RPT

transport reports

Alerts

policy drift

DMARC enforcement starts with sender inventory

Moving from p=none to quarantine or reject is risky when you do not know every service sending as your domain. WillItInbox turns aggregate reports into source labels, alignment evidence, disposition trends, and owner-ready follow-up.

  • Identify known and unknown senders before tightening policy.
  • Separate SPF alignment, DKIM alignment, and receiver disposition.
  • Use domain monitoring for SPF, DKIM, DMARC, MX, TLS, PTR, and blocklist drift.

Recommended rollout

Treat DMARC as a measured rollout. Publish reporting, read the evidence, fix legitimate senders, then move policy in controlled steps.

StagePolicyWhat to prove
Discoveryp=noneAll legitimate senders are visible and labeled.
Containmentp=quarantine with pctAligned mail keeps passing while unknown senders shrink.
Enforcementp=rejectBusiness-critical senders are aligned and monitored.

Related

MxToolbox alternative

Compare DNS lookup and monitoring workflows.

DMARC docs

Read the monitoring workflow.

Domain monitoring

Watch adjacent sender records.

FAQ

Should I jump directly to p=reject?

No. Start with reporting, label senders, fix alignment gaps, then move through quarantine and reject when evidence shows legitimate mail is safe.