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0 pointsIanCal5mo ago0 comments

Images are the clear thing that is typically remote - sometimes to the point of an email that’s entirely just an image, or rather a link to an image.

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mikepurvis5mo ago

Doesn't GMail pre-fetch those images and then cache them for the duration of the email being in your inbox, so as to defeat tracker dots, read receipts, etc?

TheNewsIsHere5mo ago

You can, at the very least, register an open by generating unique URIs for any remote content.

I’m not sure how long Google caches it. I know Fastmail is doing the same thing now for any remote content fetched from within their web interface.

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