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How? https://jioegijogeijesgioegeg.tracking.example.com/niowefioe.png?sdgsdbuegiu=rojpopwmrmwk has four places to store unique information. Does Gooogle

• bayindirh 6y ago
  Download via a proxy and cache the image when you receive the e-mail. It's processed in the queue and opened. Was it the user? Did it hit Inbox? Where did it got opened? When it's opened? How many times it opened? All these information's reliability got out of the window with a single optimization. You can't know how this mail was processed and it's fate. So, your tracking pixel and URL returned something useless to you.
  • noja 6y ago
    Aha so it's not just a proxy. It's a pre-fetching proxy. Understood you. Edit: oh :(
    • JimDabell 6y ago
      That’s not how Gmail works and it doesn’t protect your privacy that way: 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-...
  • JimDabell 6y ago
    That’s not how Gmail works and it doesn’t protect your privacy that way: 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-...
    • bayindirh 6y ago
      I didn't intend to say or have claimed that Google works this way, but it can be done that way, if one is so inclined.