Google Workspace application for email verification

The Email Verification Add-on for Google Workspace is a powerful, easy-to-use tool designed to help users verify and validate email addresses in real-time using our SaaS email verification API. This add-on will seamlessly integrate with popular Google Workspace applications such as Gmail and Google Sheets to enable users to maintain clean and accurate email lists, reduce bounce rates, and improve email deliverability.

example of existing apps : https://workspace.google.com/marketplace/app/email_v%C3%A9rification/684650843691?utm_source=site&utm_medium=link

Please provide us some example of your previous google workspace apps