Plugin is working fine.
You need to do some steps before getting a mail.
1. You need SMTP server to send mail. You can install (WP SMTP) plugin and configure it from this doc https://www.wpbeginner.com/plugins/how-to-set-up-wp-mail-smtp-with-any-host-ultimate-guide/
After that select email verification and bingo you are good to go.
I did above steps and its working fine.
