• Eager Eagle
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    66 hours ago

    IME they usually proxy and/or prefetch images for caching instead of blocking them. Only spam content is blocked by default.

    • fmstratA
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      35 hours ago

      This wouldn’t help, would it? How would you prefetch and cache:

      site.com/base64u-to-niceware-word-array/image.gif

      ? It would look like a normal image URL in any article, but actually represent data.

      Note: “niceware” is a way to convert binary or text data into a set of words like “cow-heart-running-something-etc”.

      • @hedgehog@ttrpg.network
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        22 hours ago

        If it’s prefetched, it doesn’t matter that you reveal that it’s been “opened,” as that doesn’t reveal anything about the recipient’s behavior, other than that the email was processed by the email server.