Email authentication (SPF, DKIM, DMARC)
Definition
Email authentication (SPF, DKIM, DMARC) is the DNS-based proof that a message truly comes from your domain, helping providers detect spoofing and improve inbox placement.
Authentication is table stakes before serious outbound. Misconfigured records look like spam to modern filters. Align marketing tools and CRM sending domains so authentication does not silently fail.
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