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What is DMARC and what are its advantages?

This article is part of Explained Simply Series, A series that aims to explain complex terminologies in a short & concise manner.

DMARC, which stands for “Domain-based Message Authentication, Reporting & Conformance”, is an email authentication protocol. It builds on the widely deployed SPF and DKIM protocols, adding a reporting function that allows senders and receivers to improve and monitor the protection of the domain from fraudulent email.

DMARC makes it easier for email senders and receivers to determine whether or not a given message is the real email from the sender, and what to do if it isn’t. DMARC makes it easier to identify spam and phishing messages and keep them out of users, customers, and email inboxes. DMARC allows email senders and receivers to cooperate in sharing information about the email they send to each other.

If you want to remove the threat of direct domain spoofing, prevent spear phishing attacks then you must implement DMARC.

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