I will delete all unnecessary emails from gmail or gsuite inbox

You can use one of the following Methods to give access to your mail account Method 1 - Delegate Access (Recommended ) Method 2 -Sharing Your Login Details with us

With Gmail's delegates feature, you can grant someone access to your account without revealing your password.

With Gmail's delegates feature, you can grant someone access to your account without revealing your password Delegates can read, send, and delete messages in your Gmail account. They cannot change any of your Gmail settings, including your password

On your computer, open Gmail. You can't add delegates from the Gmail app. In the top right, click Settings Settings and then See all settings. Click the Accounts and Import or Accounts tab. In the "Grant access to your account" section, click Add another account Enter the email address of the person

When a user deletes a Gmail message, it stays in their Trash for 30 days. These are the options for retrieving and restoring deleted messages: For up to 30 days after deleting, users can recover their own messages from the Trash