As an administrator, you can add an alias to an email address to map incoming messages from one address to another. For example, you might have an employee leave your organization, but you still need to make sure that you don’t miss any messages from your customers.
These maps function like a virtual user table. You don’t need to create individual routing settings for each address mapping—just add an alias to the email address that you want to redirect.
Limits on mappings
- Each address map can have up to 5,000 recipient addresses. Depending on your email sending practices, we may reduce the recipient address limit for your domain. This can affect recipient limits for your address maps. We recommend you follow our best practices for sending mail to Gmail users.
- Address maps can be created at the top-level organizational unit only.
- You can create an unlimited number of address maps.
- You can map an individual recipient address to a maximum of 12 addresses.
Set up aliases to redirect messages
From the Admin console Home page, go to AppsGoogle WorkspaceGmailRouting.
Note: You might find this setting at AppsGoogle WorkspaceGmailAdvanced Settings.
- On the left, select the top-level organizational unit.
- Next to Recipient address map, click Configure, or Edit to edit an existing setting, or Add another to add a new setting.
- At the top, enter a description.
- Under Messages to affect, choose an option:
- To apply the setting to all received messages, select All incoming messages.
- To apply the setting to messages coming from outside of your organization, select Only external incoming messages.
- (Optional) To send the message to the original recipient as well as the new address, under Routing options, check the Also route to original destination box.
- In the box, enter the original address followed by the address that you want to map to. Separate the addresses with a comma.
- (Optional) Check the Add X-Gm-Original-To header box.
If the recipient is changed , this header tag means that the downstream server knows the original envelope recipient; for example, X-Gm-Original-To: firstname.lastname@example.org.
- Click Add.
- When you're done making changes, click Add setting or Save. Any settings you add are highlighted on the email settings page.
- At the bottom of the email settings page, click Save.
It can take up to 24 hours for changes to take effect. You can track changes in the Admin audit log.