Gmail is one the most widely used email service providers. Gmail is a popular email service provider. I've used it since 2010. Gmail has more users than any other email service provider, with 2.2 billion monthly active users. Gmail has been rated as one of the safest email communication platforms. People don't want to risk losing any data in the cloud. Many people seek out how to export Gmail into a PST file to make a backup. Because PST files are portable, they can be easily transferred to any Outlook version.