Default routing is one of multiple options on the "Email settings" page for managing mail routing and delivery. This feature enables you to set up a domain-wide routing policy that includes one or more settings. The settings apply only to inbound messages.

  1. Sign in to the Google Admin console
  2. From the dashboard, go to Google Apps > Gmail > Advanced settings
  3. Click Default routing.
  4. Click Add setting.
  5. From the drop-down list, specify the envelope recipients to match. Select one of the following:
    • Single recipient—Specify a single user by typing an email address; for example,
    • Pattern match—Type a regular expression to specify a set of recipients in your domain.
    • Group membership—Select from one or more groups in the list. (Note: Create your groups from theGroups tab).
    • All recipients—Specify all recipients in your domain. By default, this only affects unrecognized addresses.
  6. In the If the envelope recipient matches the above, do the following section, specify what action to perform on a message when the conditions are met for the routing setting. You have two options in the drop-down list: Reject message or Modify message.