Restrict Outgoing Delivery

Modified on Wed, 25 Sep, 2019 at 11:16 AM

Set up message restrictions
Initial step: Go to Gmail advanced settings in the Google Admin console

In your Google Admin console (at admin.google.com)...
Go to Apps > G Suite > Gmail > Advanced settings.
On the left, select an organization.

Scroll to the Restrict delivery setting, hover over the setting, and click Configure. If the setting is already configured, hover over the setting and click Edit or Add another.

Important: This setting blocks notifications messages from Google services. To prevent this, set up Gmail to allow notification messages from Google services.

For each new setting, enter a unique name.

Go to the next step to configure the setting.

When you enter addresses or domain names, Gmail checks them against the "From:" part of the message header, not the envelope sender (or Return-Path section of the message header). Therefore, the "From:" sender must exactly match an address or domain you enter.

Click Use existing or create a new one.
Enter a new list name, and click Create.
Tip: To use an existing list as your approved sender list, click the list name.
Move your pointer over the name of the list, and then click Edit.
Click Add Add.
Enter email addresses or domain names, using a space or a comma to separate multiple entries.

Tips:
If you want to bypass this setting for approved senders that don't have authentication, uncheck the Require sender authentication box. Use this option with caution as it can potentially lead to spoofing. Learn more about sender authentication.
To see a sender’s authentication configuration, use the Check MX tool, available at https://toolbox.googleapps.com/apps/main/.
Click Save.