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Clear, honest writing on DMARC, email authentication, and getting to enforcement without breaking your mail.

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Insight

What DMARC Actually Protects You From, and What It Does Not

DMARC verifies that a domain owner authorised an email. It does not verify that the email is safe. A precise look at exact-domain spoofing, lookalikes, display-name impersonation, compromised mailboxes, and why authentication is not the same as trust.

3 Aug 2026 · 7 min read