As you can see in the recorded video below after the registration user gets the message that he/she needs to check his/her email for confirmation.

https://www.screencast.com/t/Z3kDDNwdi

In case if you want to change the message text, just navigate to the Dashboard > Forums > Phrases admin page. Here you can find and change each phrase you want. Screenshot below: 

https://www.screencast.com/t/vaL8kKwc

In Forum settings > Features > With "Enable User Registration email confirmation" on, how to inform the user that he needs to confirm the email before he can log-in?

As of now, after registration, the member goes to the home page with no clear message on the forum website. Ideally, after a user registers, I need to show him a message that he needs to confirm the email.

Thank you.