How do I configure Certificate Based Authentication in the Samsung email client?

Samsung Native Email Client
All Samsung devices supporting the Knox framework
This article describes how to set up a email certificate in the Samsung email client.
To set up the Certificate Based Authentication for exchange accounts, perform the following steps:

1. Open the Samsung email client.
2. Go to Set up email account > Manual Setup > Exchange Account.
3. Select Use client certificate.
    Note — You may be asked to set a lock  screen device password.
5. Select the required client certificate. Tap Allow if you want to use a certificate which is already installed or tap INSTALL to install new certificates.
6. Tap Next to configure Certificate Based Authentication.