Webmail applications are allowing you to check your email accounts by using your web browser. You can compose and read email messages, maintain an address book, and perform other common tasks. Offline email client applications, such as Thunderbird and Microsoft Outlook, generally provide more features than webmail applications but also require more initial configuration.
There are two cPanel webmail applications that you can use:
You can access your webmail client by typing yourdomain.com/webmail and login your email username and password.