Developer Documentation

DMARC Record Checker

Public DMARC lookup tool with plain-English guidance.

Use the free public DMARC Record Checker to inspect _dmarc TXT records, explain policies and alignment, validate reporting addresses, and surface configuration issues in plain English.

What it checks

  • Whether a DMARC record exists on _dmarc.domain
  • Policy (none, quarantine, reject) and subdomain policy
  • Tags: v, p, sp, pct, rua, ruf, adkim, aspf, fo, rf, ri
  • Report URI validity and monitoring recommendations
  • Health score including a Monitoring category