Remember when Google promised to stop pulling this crap? Apparently that didn't mean they wouldn't let OTHERS snoop through your mail.
Millions of people use third-party apps in conjunction with their Gmail accounts, and hundreds of millions of messages flow through the service on a regular basis. Last year, Google itself vowed to stop scanning users’ personal emails for data-driven advertising gold but it reportedly is still giving outside apps the ability to snoop through inboxes.