When you sign up for a Microsoft account or add an email address to your account, we automatically send a request to that email for you to verify that we have the right address. To finish the process, just follow the verification link in the email. If you need a new verification email:
Sign in to Manage how you sign in to Microsoft.
A Verify button will be next to any unverified aliases.
Click Verify next to your email address, and then click Send email.