Although you may have been using Outlook for some time, you might be missing out on some of its worthwhile features. If you’re using an email client rather than a cloud-based email service, there’s a very good chance that you’re using Microsoft Outlook, the most popular Windows-based piece of email software. An estimated 306.4 billion emails were sent every day in 2020, according to Statista - a figure that the market research firm expects to grow to 376.4 billion daily emails by 2025. Email, the mainstay of workplace communications, is stronger than ever.