Samsung Galaxy S6 User Manual page 157

3. Enter the Email address and Password for the email account, and then tap Next.
 Tapping Next prompts your phone to attempt a "regular" email setup and test the incoming
and outgoing servers.

If you have custom settings you need to configure, tap Manual setup and enter your settings.
These may include mail type, user name, password, server, security type, etc.
4. Select your sync settings and then tap Next.
Messaging and Internet 147