for hosted email admins

Onboarding simply requires to add to the incoming and outgoing messages
the bcc addresses we provided you.
within Hosted Exchange
Exchange admin center > rules > Create a new rulewithin Google Apps (Gmail)
Admin console > Apps > G Suite > Settings for Gmail > Advanced settings > Settings > Routing > [Configure]
Do you need more details? Contact us!
The solution you’re using is not in the list above? Contact us!