SPF, DKIM, and DMARC: How to Prevent Your Business Emails from Landing in Spam
Google and Yahoo enforce strict email authentication rules: messages sent without valid SPF, DKIM, and DMARC records are automatically quarantined or rejected outright.
1. SPF (Sender Policy Framework)
A TXT record that lists every authorized IP address and server permitted to dispatch emails on your domain's behalf.
2. DKIM (DomainKeys Identified Mail)
Attaches a cryptographic digital signature to outgoing email headers, proving that messages were not tampered with in transit.
3. DMARC (Domain-based Message Authentication)
Defines the exact policy (p=none, p=quarantine, or p=reject) receiving mail servers must execute when SPF or DKIM checks fail.
Kapil Wadhwa
AuthorLead Market Research & Brand Intelligence Strategist
Specializing in commercial market research, consumer brand perception, digital intelligence, and enterprise competitive positioning.
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