The Sydney Morning Herald reports [smh.com.au] that Google allows companies to read Gmail users' inboxes.
Gmail users' private messages are sometimes read by employees at software companies, it has emerged, when the user installs certain apps and grants permission to their Google account.
Though users have to specifically agree to having their emails read when they install the apps, a report from The Wall Street Journal shows [wsj.com] that this goes beyond software scanning the contents of email, and includes in some cases human developers reading the messages.
Motherboard [vice.com] has an article on finding which apps have access to your email.