Gmail is opening and caching URLs within emails without user intervention (2019)

Re:Gmail is opening and caching URLs within emails without u... by wodenokoto on Friday August 20, 2021 @04:08AM (#28243790)

I believe this is how they fetch images without meaningfully accessing tracking pixels.

If everything send to gmail is opened upon arrival and cached, you know nothing about when or if the recipient actually opened the email.

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Re:Gmail is opening and caching URLs within emails without u... by upofadown on Friday August 20, 2021 @08:04AM (#28245103)

Last time I looked into this, Gmail was not loading and caching images. Is there any evidence that this has changed?

What is being described here is likely being done for some other purpose.

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Re:Gmail is opening and caching URLs within emails without u... by wodenokoto on Friday August 20, 2021 @11:03AM (#28246848)

Google claimed to do that.

> Instead of serving images directly from their original external host servers, Gmail will now serve all images through Google’s own secure proxy servers.

Https://gmail.googleblog.com/2013/12/images-now-showing.html

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Re:Gmail is opening and caching URLs within emails without u... by upofadown on Friday August 20, 2021 @11:19AM (#28247037)

Proxy servers, not caching servers.

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Re:Gmail is opening and caching URLs within emails without u... by bradknowles on Monday August 23, 2021 @03:00AM (#28273004)

When are proxy servers not caching?

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