DMARC
DMARC is a DNS policy that tells receiving servers what to do with email that fails SPF and DKIM checks, and where to send reports about it.
DMARC ties SPF and DKIM together and lets you enforce a policy (none, quarantine, or reject) against spoofed mail using your domain. It is the key control for protecting your brand from phishing and improving deliverability.
Does your DMARC policy protect your brand?
Analyze your DMARC record and see what happens to spoofed mail: none, quarantine or reject. The one control against phishing with your domain. Free.
Related terms
SPF (Sender Policy Framework)SPF (Sender Policy Framework) is a DNS TXT record that lists which mail servers are allowed to send email on behalf of your domain.DKIM (DomainKeys Identified Mail)DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing email so receivers can verify it really came from your domain and was not altered.DNSBL / RBL (Blocklist)A DNSBL (DNS-based Blocklist), also called an RBL, is a published list of IP addresses or domains flagged for sending spam or malicious traffic.
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