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13:T468,<h2>Signals worth checking</h2><ul><li>The message contains a small or visually hidden remote image.</li><li>An image or link uses an unfamiliar endpoint or an opaque redirect path.</li><li>A tracker-detection tool flags a pixel or supported tracking-link pattern on the opened message.</li></ul><h2>How to check a specific message</h2><ol><li>Install Mailshade, opt into your mail client, and open the email.</li><li>Look for the red-eye overlay on an opened message with a detected tracker.</li><li>Read the reported tracker origin to see what the local scan matched.</li><li>Open the dashboard to see that sender's detection history.</li></ol><h2>From detection to blocking evidence</h2><p>Mailshade separately uses DNR to cancel receiver-side browser requests matching reviewed tracker-pixel endpoints. A heuristic pixel or link detection is useful evidence, but is not itself proof that every associated request was network-blocked.</p><h2>Why some emails show nothing</h2><p>An absence of the red eye means the local scan found no matching signal; it is not a guarantee that no unknown or unsupported technique exists.</p>10:["$","div",null,{"dangerouslySetInnerHTML":{"__html":"$13"}}]
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