SPF, DKIM, DMARC
Three authentication mechanisms proving an email really comes from the claimed domain, essential to deliverability.
SPF declares which servers may send for a domain; DKIM cryptographically signs each email; DMARC tells receiving servers what to do if SPF or DKIM fails. Together they prove sender legitimacy.
Without these three records correctly configured, campaigns land in spam regardless of list quality. This is the technical foundation of any email prospecting.
Related terms
To go further, read our B2B data enrichment guide or try the free email verifier.
From theory to practice
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