I'm not certain that you appreciate how crucial and widespread native email clients are in the business and academic worlds, both on the desktop and on mobile d

I'm not certain that you appreciate how crucial and widespread native email clients are in the business and academic worlds, both on the desktop and on mobile devices. Maybe these users do have personal Hotmail or Gmail accounts. However, for anything serious and work-related, they're very likely using Outlook, Lotus Notes, Mail.app, Thunderbird, or one of the numerous other native email clients. Many people, especially those in management, sales, accounting, finance or other communication-heavy areas of business, often spend many hours each workday using a native email client, on both the desktop and on mobile devices. Within technical and academic circles, and also the open source community, many people prefer native email clients because they're so much more powerful than the web-based clients. Furthermore, I personally know a lot of people who have an @gmail.com account, but they essentially always use it from a native client via IMAP and SMTP, rather than using the web interface. They use it mainly because it's free, and because of its large storage space, rather than because of its web interface.