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What Is SPF, DKIM & DMARC? (+ How to Set Them Up in 2026)

woodpecker.co

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  1. Valid MX records for receiving replies “A real mailbox connected to the sending domain” Gradual sending rather than an immediate volume spike

    In Mailbox provisioning

  2. Many teams use a separate domain or related domain variation for outbound campaigns. If you take that approach, configure SPF, DKIM and DMARC separately for every active sending domain. Parent-domain records do not automatically cover every subdomain or separate domain. “The full process for setting up a domain and mailbox for cold outreachshould be completed before prospects enter the campaign.” How to check your SPF, DKIM and DMARC setup

    In Mailbox provisioning