Getting spam from Google

I like Google products, but the company is frustrating to deal with. Google mail does an excellent job of filtering spam, but it tags as spam the messages I get from Google itself. I just got an email from "The Google Books Team", confirming a financial transaction, and Google mail not only marked it as spam but also put it behind a giant red anti-phishing warning:

Warning: This message may not be from whom it claims to be. Beware of following any links in it or of providing the sender with any personal information.

The only link in the email was to the Google Books Partner program.

I have also gotten email from the Google Blogger team, and had it marked as spam.

Currently Google has lawsuits about whether it should be allowed to represent the interests of authors of orphan works. However it is very difficult to get the company to do what I want with my books even when I am filling out their own web forms and explicitly granting permission, and communicating with their own email service. There should be a way to copy orphan works, but Google control is not the answer.