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What is DMARC?
DMARC stands for “Domain-based Message Authentication, Reporting & Conformance” this is a technical term which is created by a group of organization to prevent spammers from using your domain name to send email without your authentication, sending unauthorized email without configuring proper SPF and DKIM records is also known spoofing.
Together with SPF and DKIM, DMARC allows you to set rules to reject or quarantine emails from sources you do not know or trust.
As a part of DMARC specifications, top ISPs providers i.e. Gmail, Outlook, Yahoo etc. who implement DMARC specification also generate reports on sending activity of your domain name.
PostMarkApp.com DMARC tool is a free DMARC monitoring tool which collect ISPs DMARC data and offers free weekly digest report of your domain name on your registered email id.
