dmarc.org – Domain Message Authentication Reporting & Conformance
What is DMARC? DMARC, which stands for “Domain-based Message Authentication, Reporting & Conformanceâ€, is an email authentication, policy, and reporting protocol. It builds on the widely deployed SPF and DKIM protocols, adding linkage to the author (“From:â€) domain name, published policies for recipient handling of authentication failures, and reporting from receivers to senders, to improve and mo
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