DMARC (Domain-based Message Authentication, Reporting and Conformance) is a protocol designed to authenticate the sender’s email domain and verify the message’s authenticity. DMARC helps in filtering spam by preventing email spoofing, a common tactic used by spammers to send emails that appear to be from legitimate sources but are actually fraudulent or malicious.
With DMARC, email receivers can verify if the email sender is authorized to use the domain name on the email header and perform specific actions based on the outcome of the verification. For example, if the email fails the DMARC check, the receiver can choose to reject or quarantine the email message, thus preventing it from reaching the recipient’s inbox.
Overall, DMARC provides an additional layer of security to filter out spam and protect email users from phishing attacks, malware, and other fraudulent activities.
