How to Design for the Web in 2019
  • I'm most interested in point 2— Because with a Do Not Track policy you have created a system in your email software that determines whether a piece of information is a unique address... While there are some ways you can determine that for instance – such as a company's address book – in the case of most of us, email does not have that capability. Instead, an email itself becomes a piece of information for tracking purposes.

    That's why there is a lot of confusion among the many different mailing list platforms about how to properly do away with a Do Not Track cookie, like the article mentions.

    Even then, and I think they glossed over this, there's actually a lot more to do when you've rolled out a Do Not Track policy. For example, do you add the feature to an Outlook account or to Google's email? Would the company have to provide additional data... etc.