Re: Thank you Google
"It is exceedingly rare to see spam in my in-box, and the filtered spam folder almost never includes a false positive."
Office 365 email service has lots of false positives that it relegates to the imap junkmail folder. Rarely is there a genuine scam email in there - although no doubt they silently discard the most egregious universal ones.
It puts Royal Mail tracking notifications in there. Also most of the "picture update form" emails generated from a web site I manage. Those all have a format which will be similar every time - although the content will be different. However it was a surprise to see it do that to an email that was the final exchange with the genuine Duracell helpline telling me they had deposited the promised refund.