SPF, DKIM and DMARC: Complete Email Authentication Setup

Domains · 19.04.2026
SPF, DKIM and DMARC: Complete Email Authentication Setup

SPF, DKIM, and DMARC are DNS records that let mail servers verify your domain's legitimacy as a sender.

Implementation Order

  1. Configure SPF and DKIM
  2. DMARC with p=none (collect reports)
  3. After 2–4 weeks — p=quarantine
  4. After 1–3 months — p=reject
⚠️ Don't set p=reject immediately — collect reports for a month first.
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