The advantage of using an email client is that you don't have to open a web browser and log in to your mailbox every time; supports for new email reminder; allows to send emails to third-party applications (e.g., Evernote, Todoist, etc.), and so forth. Therefore, users who need to send and receive emails frequently always tend to use a desktop email client, rather than any web browser.

eM Client is a all-powerful free/commercial desktop email client for Windows all platforms (XP+). In addition to being popular due to its modern and friendly UI, eM Client also provides many extra convenient features, such as calendar, tasks, contacts and even online chat.