Google Connections are used for the purposes of connecting Архива to the Google Apps Audit API over the Internet. By creating and enabling a Google connection, Архива will instruct Google to setup 'monitors' for each and every account defined in Google Apps. When a monitor is setup for a particular account, a copy of all incoming, outgoing and internal mails will be sent to a temporary mailbox of your choosing. Over time, Архива will attempt to ensure that if new users are created in Google Apps, monitors will automatically be setup for each new account.
The Google Connection does not perform the actual retrieval of mails from Google Apps. It only ensures that emails are forwarded by Google to temporary mailbox of your choosing. Rather, mails are typically retrieved by Архива from the temporary Google Apps journal account by creating a separate IMAP Connection to the journal mailbox.