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I was aware of the proxying, but didn't realize that gmail always prefetched the image. This implies that even sending each recipient a unique image URL will no
by ryan-c 11y ago
I was aware of the proxying, but didn't realize that gmail always prefetched the image. This implies that even sending each recipient a unique image URL will not work?
- icebraining 11y agoI believe that's correct - it always fetches the image, so there's no leak.
- jkturbo 11y agoAuthor here. Gmail does not prefetch the image. Appending a unique image URL will still allow the sender to know when you've opened the email. The proxy eliminates your IP as well as user-agent so the sender can't tell where you are and what you're using to read the email.
- ocdtrekkie 11y agoI was going to argue with you and go get a link to wave in your face. But you're right: https://blog.filippo.io/how-the-new-gmail-image-proxy-works-and-what-this-means-for-you/ https://blog.filippo.io/how-the-new-gmail-image-proxy-works-...