Check your email using Roundcube webmail client, follow these steps:

1. Log in to your cPanel account provided by your hosting service provider.
2. In the "Email" section, look for the "Email Accounts" icon and click on it.
3. Find the email account you want to access using Roundcube and click on the "Check Email" button next to it.
4. You will be presented with different webmail clients to choose from. Select "Roundcube" from the options.
5. Roundcube webmail will open in a new tab or window. Enter the full email address (e.g., [email protected]) as the username and enter the password associated with the email account.
6. Click on the "Login" button to access your email account through Roundcube.
7. Once logged in, you will be able to view and manage your emails, compose new messages, create folders, and perform other email-related tasks.

Roundcube provides a user-friendly interface for managing your emails, and you can customize the settings according to your preferences.