How does this work?

How does this work?

DMARC is a record that is added into your DNS. When an email is sent from your domain it goes through your DNS and the email receiver verifies if you have a DMARC record or not. If not, it will go without any verification or authentication. Whereas, if you have a DMARC record, it verifies the email's authenticity by checking its SPF record and DKIM signature.

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