By the integration with the Amazon Simple Email Service (SES), you can send the email notifications to your users whenever incidents are created/updated and maintenances are scheduled/updated. The page explains how to set up the notifications.
See the AWS docs for the verification process.
See the AWS docs for instructions. Here is the example of the 'Use Case Description' form:
Used to support the subscription feature of our status page. A visitor to our page can choose to subscribe to our notification emails which will be sent when an incident happens to our service. A user can unsubscribe to our email by clicking 'Unsubscribe' button at the footer of the email. Bounces and complaints will be notified through SNS and our AWS lambda function will remove those email addresses from our recipient lists. The increase amount is calculated from the number of visitors to our service.
...and LambStatus actually works like this!
That's it! Check the email icon at the header of your status page!