This investigation into email tracking attempts to deconstruct tracking links and pixels and highlight the data that is being collected. It covers Mailchimp, ConvertKit, Substack and other Mailgun retailers.
My preferred email newsletter provider is Buttondown but when I set up my newsletter Interesting Things, I chose Substack. However, after two weeks, the warm glow of Substack had subsided and I moved it over to Buttondown. Here’s the story.