Set up Smart Mailbox Cleaner for your Google Workspace organization in 3 easy steps. Authorize the application across your organizational units without sharing passwords.
Navigate to Security > Access and data control > API controls in your Google Workspace Admin Console.
Click Manage Third-Party App Access > Add app > OAuth App Name or Client ID. Search for Smart Mailbox Cleaner using Client ID:
763671886290-6ivgg1jsi53mhffpscsg7kue04gbvase.apps.googleusercontent.com
Configure Gmail Read-Only (metadata scanning), Gmail Modify (safe trash/undo cleanup), and Drive Metadata (storage breakdown). Select Trusted: Can access all Google services to allow users in your domain to clean their mailboxes seamlessly.