* Access the Admin Console:
* Log in to the Google Workspace Admin console at https://admin.google.com/.
* Configure Email Routing:
* Navigate to "Apps" > "Google Workspace" > "Gmail" > "Default routing".
* Set Up Split Delivery:
* Create a new default routing rule.
* Under "Add setting," click on "Routing."
* In the "Add setting" box, under "Inbound," select "Configure" next to "Routing."
* Under "Add setting," name your routing policy.
* In the "Email messages to affect" section, specify the conditions for the rule (e.g., recipients in the new-company.com domain).
* Route to On-Premises Server:
* In the "Route" section, select "Modify message" > "Add more recipients."
* Enter the on-premises email server information (e.g., SMTP relay server) to forward emails to the on-premises server.
* Save the rule and ensure it is active.
* Test the Configuration:
* Send test emails to ensure that emails are correctly routed to the on-premises server as per the split delivery setup.
* Monitor the email flow and make adjustments if necessary to ensure smooth operation during the peak season.
References
* Google Workspace Admin Help: Set up routing for your domain or organization
* Google Workspace Admin Help: Configure routing for mail in Google Workspace