Drop the registration form on a mail with success messages

The form receives the e-mail address, after successful sending the form you will see the message of success with the e-mail introduced earlier.
Validation of forms. If the mail is inserted with a mistake, the form will not be submitted and the mistake will be displayed. Created on React JS with Sass.
You can view the results here: https://nevredimiy.github.io/build-newsletter/.
The full code can be viewed here - https://github.com/nevredimiy/newsletter-sign-up-with-success-message-main.git
#react.js, #react, #sass, #SASS (SCSS)