Paid Business and Agency organizations can connect Google accounts through OAuth.
- Open Mail Accounts.
- Choose Connect Google.
- Sign in to the Google account that owns the mailbox.
- Review the requested permissions and approve the connection.
- Return to Mail Hub and run the connection test.
Mail Hub stores provider tokens encrypted with the installation APP_KEY. Do not replace APP_KEY after provider connections or other encrypted secrets have been saved.
Google production note: public multi-user Gmail access can require Google OAuth verification depending on the scopes and deployment.