I don’t get it. How does an image manage to get that information. What is the mechanism?
>>I don’t get it. How does an image manage to get that information. What is the mechanism?
The ‘image’ doesn’t actually get the request, its the fact that your email client is requesting the image from a web server to download it - so without being too technical, outlook (in my case), or perhaps gmail for someone else - once the users says ‘download images’, an HTTP request is made to a web server - almost the same as if you went to a website with a browser - all http requests contain header information (i.e. ip address, browser, os version etc) and just about every website you go to logs this information.