"Users don't have to do anything to take advantage of this new feature. When you attach a file, Gmail will double-check that your recipients have permission to view the files in Google Drive.Gmail Is Now Letting You Send 10GB Files - Business Insider
ReadWrite says that if the person you're sending a file to doesn't have permission to view the file, then Gmail willprompt you to change the sharing settings without having to leave your email."
Wednesday, November 28, 2012
Gmail Is Now Letting You Send 10GB Files - Business Insider