3 ms·

It does solve the problem because Google download the image no mater what so you can't know if someone opened the image or not.

• forgotmypw3 8y ago
  Google's service delays downloading the image until the moment it is requested by the client.
  • ehsankia 8y ago
    But is that when they "open" the email, or simply them opening Gmail?
    • Andrex 8y ago
      Mailchimp analytics would outright not work if it was the latter, so it's probably the former.
  • zimmund 8y ago
    Correct. This is how Mailchimp and other similar services can tell if you opened an email.