Glossary
DMARC
Domain-based Message Authentication, Reporting and Conformance: a DNS policy that tells receivers what to do with mail that fails SPF and DKIM alignment with your From domain.
ValidReach Team · Updated 2026-10-26
In practice
The record is a TXT record at _dmarc.example.test. Policies are none (monitor), quarantine and reject. Start with none and read the reports before tightening.
Verification and sending
DMARC protects your domain from spoofing. It is separate from verifying the addresses you send to.