Send email to two email systems with split delivery

As an administrator, you can customize how email is routed and stored to meet your organization's requirements.

Gmail split delivery lets you deliver incoming email messages to 2 different email systems in your domain, based on recipients you specify. For example, use split delivery when some people in your organization use Gmail and other people use a different email system. You can also use split delivery when you migrate from another email server to Gmail. 

Step 1: Add your non-Gmail server in the Admin console

Before you can set up split delivery, you must add your non-Gmail server with the Add Route setting.

Step 2: Set up split delivery

In this step, you'll add the split delivery setting, and reference the server you added in Step 1.

1. Sign in to your Google Admin console.

   Sign in using your administrator account (does not end in @gmail.com).

2. In the Admin console, go to Menu  AppsGoogle WorkspaceGmailRouting.
3. On the Routing tab, scroll to Routing.
4. Click Configure or Add Another Rule. The Add setting box opens.
5.  In the Add setting box, take these steps:
    

   Setting options	What to do
   Required:	Enter a name or description for the new rule. You can't save the new rule if this field is empty.
   Email messages to affect	Check the Inbound box, the Internal-receiving box, or both. Inbound—Incoming messages from external senders are delivered to both the primary and secondary server. Internal-receiving—Incoming messages from internal senders are delivered to both the primary and secondary server. Messages from internal senders have your organization's domain or subdomain in the From field.
   For above type of messages	Click the menu  and select Modify message. Click the Change route box. Under Change route, click the menu  and select the external server where you'll deliver the affected messages. Scroll down, and click Show options.
   Options	Under Account types to affect, check the Unrecognized/Catch-all box. The Users and Groups boxes should be unchecked. (Optional) To apply this setting only to senders or recipients that you specify: Under Envelope filter, check one or both boxes. Click the menu  and select an option for matching sender and recipient addresses. Enter an email address, pattern, or group to match. Repeat for all senders and recipients.

6. At the bottom of the Add setting box, click Save. Changes can take up to 24 hours but typically happen more quickly. Learn more

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