DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email authentication protocol. It is designed to give email domain owners the ability to protect their domain from unauthorized use, commonly known as email spoofing. The purpose and primary outcome of implementing DMARC is to protect a domain from being used in business email compromise attacks, phishing emails, email scams and other cyber threat activities. Once the DMARC DNS entry is published, any receiving email server can authenticate incoming emails on the basis of the instructions published by the domain owner within the DNS entry. If the email passes the authentication, it can be trusted and will be delivered. If the email fails the check, depending on the instructions held within the DMARC record the email will either be delivered, quarantined or rejected.
Related Articles
Multiple DMARC Records Issue
A DMARC check begins by fetching all TXT records published at _dmarc.<domain> that start with v=DMARC1. In case you want to know how many DMARC records you can have on a single domain, the only correct answer is ‘ONE’. A domain must not have more ...
What Is DMARC?
DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol introduced in 2012 to reduce the risk of email-based cyberattacks such as phishing, spoofing, and domain impersonation. DMARC is considered an ...
What is Smart DMARC?
Implementation and management of SPF, DKIM and DMARC is one common issue faced by all. However, the Smart DMARC feature by TDMARC eliminates the hassle to a greater extent. It makes monitoring and securing domains extremely easy and hassle-free. ...
How Smart DMARC Works?
TDMARC is an analytical tool that complements the Simple Mail Transfer Protocol (SMTP) by monitoring all three of the standard email authentication protocols namely SPF, DKIM and DMARC. It offers a number of features to secure your email domains ...
DMARC Identifier Alignment
DMARC Identifier Alignment DMARC identifier alignment ensures that the domains authenticated by SPF and/or DKIM are aligned with the domain visible to recipients in the Header From field. Email users rely on the From address shown in their email ...