If an email address is unverified, notifications will not be sent to the recipient. To check if an email address is verified, hover over the Email Tab and then choose Email Address Verification. You can then use the drop-down menus to filter to Verified, Unverified or Verified but block sending and then to the Role (for example to League Administrator if you would like to see which League Admins are verified and which aren’t).
To send a verification request simply click the box for “Make Request” and then click send at the bottom of the page. This will send the person an email with a link asking them to click the link and when they do, they will then be verified.