There are legitimate uses for knowing if someone read their email. Those use cases are the ones where the user consents to you knowing it and are covered by rea

There are legitimate uses for knowing if someone read their email. Those use cases are the ones where the user consents to you knowing it and are covered by read receipts. Google did not kill tracking personalized tracking pixels. All they blocked is the ability to determine the user's IP because you will get a connection from Google's proxy instead of directly from the user.