dmarc-policy-effects

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

DMARC p=none is not enough: Why Enforcement Matters in 2026

Don't rely on DMARC p=none. Learn why monitoring alone leaves your domain exposed and how enforcement protects your sender reputation and inbox placement.

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

DMARC p=quarantine: What Happens to Failing Mail at Gmail & Outlook

Understand what happens to emails that fail DMARC when p=quarantine is set. Learn how Gmail and Outlook handle them, and how to verify your list to avoid.