Setting Up Block Senders Setting

1. Sign in to the Google Admin console.  

2. Click Google Apps > Gmail > Advanced settings.

3. In the Organizations section, highlight your domain or the organizational unit for which you want to configure settings. blockOUsender.png
4. Scroll down to the Blocked senders section:
  • If the setting's status is Not configured yet, click the Configure button near the right edge of the window (the Add setting dialog box opens).
  • If the setting's status is Locally applied, click Edit to edit an existing setting (the Edit setting dialog box appears), or click Add another to add a new setting (the Add setting dialog box appears).
  • If the setting’s status is Inherited, click View to view the inherited setting, or click Add another to add a new setting (the Add setting dialog box opens).
  • See the sections below for additional instructions and guidelines. When you are finished making changes,click Add Setting or Save  to close the dialog box.
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5. Click Save changes at the bottom of the Email settings page.

Add Addresses or Domains to the list

After performing the steps above:

  1. Click Use existing or create a new one.
  2. Select the name of an existing list, or enter a custom name for a new list in the Create new list field, and then click Create.
  3. Hover over the list name, and click Edit.
  4. Click Add to add email addresses or domains to the list.
  5. Enter the address or domain name, and click Save.
  6. To add more email addresses or domains to the list, repeat steps 4 and 5.

Edit the Default Rejection Notice

In this field, you can enter customized text for the rejection notice.

Add Exceptions To your List

Check the box in the Options section ("Bypass this setting for messages received from addresses or domains within these approved sender lists") to set up a new approved sender list or to reuse a list that you have already created. An approved sender list enables you to approve messages from specific addresses or domains. When you set up an approved sender list in the Blocked senders setting, messages from domains or email addresses in the list will bypass the Blocked senders setting. Note: Other settings may still cause the message to be blocked.