Anyone who sends email from a Gmail account or sends email to a Gmail user, should have no expectation of privacy, according to Google.
In response to a class action lawsuit accusing the search engine giant of violating wiretap laws, Google said no one at the company sifts through emails.
"All users of email must necessarily expect that their emails will be subject to automated processing," said Google in the response filed last month and published in Consumer Wathdog.
The automated feature used by Google allows the company to target ads at users. Those ads are visible on the same page as an email.
In June, the Guardian newspaper reported that Google was one of the companies that gave the NSA "direct access to its systems."