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My knowledge originates from this post if you'd like to evaluate the source. The reason as to why is a theory in the post too so it's not exactly a real source, it's my source. https://daringfireball.net/linked/2020/06/01/product-info-in-amazon-emails https://daringfireball.net/linked/2020/06/01/product-info-in... E: I should have acknowledged the rest of your post, sorry! I did read it, I've just got nothing to add as it's new information to me, thank you for the info! Didn't mean to come across as dismissive there! :)