diff --git a/message/tests/behat/message_admin_settings.feature b/message/tests/behat/message_admin_settings.feature
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+@core @core_message @javascript
+Feature: Message admin settings
+  In order to manage the messaging system
+  As an admin
+  I need to be able to enabled/disabled site-wide messaging system
+
+  Background:
+    Given the following "users" exist:
+      | username | firstname | lastname | email |
+      | user1 | User | One | one@example.com |
+
+  Scenario: enable site messaging
+    Given the following config values are set as admin:
+      | messaging | 1 |
+    When I log in as "admin"
+    Then "Toggle messaging drawer" "icon" should exist
+    And I navigate to "Users > Accounts > Browse list of users" in site administration
+    And I should see "User One"
+    And I follow "User One"
+    And "Add to contacts" "link" should exist
+
+  Scenario: disable site messaging
+    Given the following config values are set as admin:
+      | messaging | 0 |
+    When I log in as "admin"
+    Then "Toggle messaging drawer" "icon" should not exist
+    And I navigate to "Users > Accounts > Browse list of users" in site administration
+    And I should see "User One"
+    And I follow "User One"
+    And "Add to contacts" "link" should not exist