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A comment on Will Apple Mail threaten the newsletter boom?. Parent comment

Re:Will Apple Mail threaten the newsletter boom? by gruez on Thursday June 10, 2021 @05:40PM (#27466199)
>Gmail and similar providers proxy all image URLs they receive at the time they receive the email, so you can't tell when a user later opens the email.

I searched around and found some articles that makes the same claim[1], but in my own testing that doesn't seem to be the case (ie. I had to click on the email before image would start loading).

[1] https://sendloop.com/articles/the-effect-of-gmail-image-prox...

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Re:Will Apple Mail threaten the newsletter boom? by jalk on Thursday June 10, 2021 @06:28PM (#27466667)
I did the same test (although some years ago) and gmail didn't request the images until the email was opened. Caching the images lazily also means that Google can save a ton in network bandwidth / storage for all those emails that are never opened (which is probably most emails the handle)
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