Email Address Validation

It says I need to validate my email address. What is this all about? How do I validate my email address?

Verifying your email address if the first of three steps to verify your identity and fully unlock all of your account features. In the cashier, select Verify to send an automated mail to your registered email address. Follow the link provided in the mail to verify your address and complete this step.

*Client -> Cashier -> My Info page (*ScreenShot)

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