> I think the problem also is that Google scans incoming emails sent by non-google users who haven't agreed to such scanning. That is definitely not the proble

> I think the problem also is that Google scans incoming emails sent by non-google users who haven't agreed to such scanning. That is definitely not the problem. Email you send is owned by its recipient. Generally, the recipient can do what they want with it, including delegating to Google and allowing Google to scan it for purchase information. > They didn't make it clear if they removed information mined from previous scanning of emails. That information was ephemeral, IIRC. It was scanned when you loaded an email to allow advertisers to make bids for ads relevant to the given email. In any case, bits rot at Google like anywhere else. If a feature or system is no longer being maintained, it quickly stops working. There is approximately zero chance that they retained any data that they theoretically would have generated from emails scanned half a decade ago.