As an administrator, you can customize how email is routed and delivered to meet your organization's requirements.
Split delivery delivers incoming 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 non-Gmail email servers to Gmail.
Before you begin
To set up split delivery using the steps on this page, make sure that:
- Your domain's MX record uses Google. Learn how to Set up MX records for Google Workspace .
- All incoming email is initially delivered to and processed by Gmail. Gmail then forwards some messages to the non-Gmail email system, based on the routing rule you'll add in Step 2.
- Users (recipients) have an email address in Gmail or in the non-Gmail email system, but not in both.
Step 1: Add a non-Gmail email server
Add a mail route for the non-Gmail server, using the Add Route setting. Gmail forwards messages to this server based on the routing rule you'll add in Step 2.
For detailed steps to add a mail route for your domain, visit Add mail servers for Gmail email routing .
Step 2: Set up split delivery with a routing rule
In this step, you'll add a routing rule for split delivery.
- Sign in with an administrator account to the Google Admin console.
If you aren’t using an administrator account, you can’t access the Admin console.
- Go to Menu Apps > Google Workspace > Gmail > Routing .
Requires having the Gmail Settings administrator privilege .
- On the Routing tab, scroll to Routing.
- Click Configureor Add Another Rule. The Add setting box opens.
- In the Add settingbox, take these steps:
Setting optionsWhat to doRequired:Enter a name or description for the new rule. You can't save the new rule if this field is empty.Email messages to affectSplit delivery is for incoming messages only.
Check the Inboundbox, the Internal-receiving box, or both:
- Inbound—Incoming messages from external senders
- Internal-receiving—Incoming messages from internal senders. Messages from internal senders have your organization's domain or subdomain in the Fromfield.
A domain is internal if it is a verified workspace domain, or a subdomain or parent domain of a verified workspace domain.
For above type of messagesSelect the non-Gmail server you added in Step 1. Gmail will forward messages to this server:
- Click the menu and select Modify message.
- Click the Change routebox.
- Under Change route, click the menu and select the email server you added in Step 1.
- Scroll down, and click Show options.
OptionsSpecify which messages are forwarded to the non-Gmail server:
Under Account types to affect, check the Unrecognized/Catch-allbox and leave the Usersand Groupsboxes unchecked. Inbound messages sent to any undefined email address are automatically forwarded to the non-Gmail email server.
(Optional) You can also forward specific messages to the non-Gmail server, based on message sender or recipient:
- 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.
- At the bottom of the Add settingbox, click Save . Changes can take up to 24 hours but typically happen more quickly. Learn more
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