// AUTHENTICATION

DMARC

DMARC is a DNS policy that tells receiving servers what to do when SPF or DKIM checks fail for your domain.

// IN PRACTICE

Cold email domains start at p=none, graduate to quarantine, then reject. Google and Yahoo require at least p=none for bulk senders since 2024.

// RELATED TERMS
SPFDKIMBulk sender requirements (Google/Yahoo 2024)

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// MORE
SPFDKIMMX recordDNS propagationTXT recordCNAMEWarmupPre-warmed mailboxInbox placementDeliverabilitySender reputation
// READY

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