Meridian Radar

Someone is sending email from your domain: how to stop it with DMARC

СМИ/RSS · 2026-11-12 · buzz 80

<p>If someone is sending email that appears to come from your domain, the fix is to publish SPF, turn on DKIM signing for your own domain, and move your DMARC policy to <code>p=reject</code> so receivers that enforce DMARC refuse the forged mail. Before you change anything, confirm that the mail really is forged: read the <code>Authentication-Results</code> header of a sample message. If it fails

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