diff --git a/admin/base/settings/defaults.py b/admin/base/settings/defaults.py
index 6ca67ee5075a..4554355821d4 100644
--- a/admin/base/settings/defaults.py
+++ b/admin/base/settings/defaults.py
@@ -41,8 +41,6 @@
 
 ALLOWED_HOSTS = [
     '.osf.io',
-    'localhost',
-    '127.0.0.1'
 ]
 
 AUTH_PASSWORD_VALIDATORS = [
diff --git a/api_tests/requests/views/test_node_request_institutional_access.py b/api_tests/requests/views/test_node_request_institutional_access.py
index 16a3ec426264..ee9b8be1defd 100644
--- a/api_tests/requests/views/test_node_request_institutional_access.py
+++ b/api_tests/requests/views/test_node_request_institutional_access.py
@@ -194,13 +194,52 @@ def test_institutional_admin_unauth_institution(self, app, project, institution_
         assert res.status_code == 403
         assert 'Institutional request access is not enabled.' in res.json['errors'][0]['detail']
 
-    @mock.patch('website.mails.send_mail')
-    def test_email_send_to_all_admins_once_on_institutional_request(self, mock_mail, app, project, url, create_payload, institutional_admin):
+    @mock.patch('api.requests.serializers.send_mail')
+    @mock.patch('osf.utils.machines.mails.send_mail')
+    def test_email_send_institutional_request_specific_email(
+            self,
+            mock_send_mail_machines,
+            mock_send_mail_serializers,
+            user_with_affiliation,
+            app,
+            project,
+            url,
+            create_payload,
+            institutional_admin,
+            institution
+    ):
+        """
+        Test that the institutional request triggers email notifications to appropriate recipients.
+        """
+        # Set up mock behaviors
         project.is_public = True
         project.save()
+
+        # Perform the action
         res = app.post_json_api(url, create_payload, auth=institutional_admin.auth)
+
+        # Ensure response is successful
         assert res.status_code == 201
-        assert mock_mail.call_count == 1
+
+        assert mock_send_mail_serializers.call_count == 1
+        assert mock_send_mail_machines.call_count == 0
+
+        # Check calls for osf.utils.machines.mails.send_mail
+        mock_send_mail_serializers.assert_called_once_with(
+            to_addr=user_with_affiliation.username,
+            mail=NODE_REQUEST_INSTITUTIONAL_ACCESS_REQUEST,
+            user=user_with_affiliation,
+            bcc_addr=None,
+            reply_to=None,
+            **{
+                'sender': institutional_admin,
+                'recipient': user_with_affiliation,
+                'comment': create_payload['data']['attributes']['comment'],
+                'institution': institution,
+                'osf_url': mock.ANY,
+                'node': project,
+            }
+        )
 
     @mock.patch('api.requests.serializers.send_mail')
     def test_email_not_sent_without_recipient(self, mock_mail, app, project, institutional_admin, url,
diff --git a/osf/features.yaml b/osf/features.yaml
index ad57a9e3b06b..1b41e4b2cdc0 100644
--- a/osf/features.yaml
+++ b/osf/features.yaml
@@ -192,7 +192,6 @@ flags:
   - flag_name: INSTITUTIONAL_DASHBOARD_2024
     name: institutional_dashboard_2024
     note: whether to surface older or updated (in 2024) institutional metrics
-    everyone: false
 
 switches:
   - flag_name: DISABLE_ENGAGEMENT_EMAILS