Paste a domain and see whether DMARC is set up and how strictly messages are handled.
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Frequently Asked Questions
DMARC (Domain-based Message Authentication, Reporting & Conformance) tells receiving servers what to do with emails that fail SPF or DKIM, and where to send aggregate and forensic reports.
rua is the address for aggregate (daily) reports. ruf is for forensic reports on individual failures. Both use mailto: URIs.
p=none means monitoring only—receivers don't reject or quarantine but can send you reports. Use p=quarantine or p=reject for enforcement.