This guide explains how to fully disconnect Gmail from Hasleo Backup Suite. You'll learn how to revoke Google account permissions and delete locally stored authentication tokens. Here's what we'll cover:
When you connect your Gmail account to Hasleo Backup Suite for sending backup notifications via email, Google records this authorization in your account settings. If you no longer need these notifications or want to enhance your account security, revoking access is essential. Removing permissions prevents Hasleo Backup Suite from continuing to access your Gmail data and ensures your Google account remains secure. This guide provides two methods to fully disconnect: removing authorization through Google's account settings and deleting locally stored token files.
Step 1. Visit https://myaccount.google.com/connections, sign in with your Google account, and you will see a list of all authorized applications.
Step 2. Locate Hasleo Backup Suite and click it.

Step 3. The permissions you have granted to Hasleo Backup Suite are listed here. Click "Delete all connections you have with Hasleo Backup Suite" below to revoke them..

Step 4. Click "Confirm" to delete the connection with Hasleo Backup Suite.

Step 5. Once you have successfully disconnected Hasleo Backup Suite, return to the app list and you will find that it has disappeared from the app list.

Step 1. In the address bar of File Explorer, directly type %ProgramData%\Hasleo Backup Suite\Email Auth2 to open the folder where the tokens are saved.

Step 2. Locate the file whose name starts with gmail_, followed by your email address, and ends with the .bin extension, then delete that file.

This guide walked you through the complete process of removing Gmail access from Hasleo Backup Suite. By revoking permissions through your Google account settings and deleting local token files, you ensure that the application no longer has any connection to your Gmail account.
Regularly reviewing and managing connected applications is a good security practice. If you decide to use email notifications again in the future, you can easily reconnect your Gmail account directly through Hasleo Backup Suite's settings.