diff --git a/inventory/service/host_vars/lists.openstack.org.yaml b/inventory/service/host_vars/lists.openstack.org.yaml
index b551ca6778..5ef618c8e5 100644
--- a/inventory/service/host_vars/lists.openstack.org.yaml
+++ b/inventory/service/host_vars/lists.openstack.org.yaml
@@ -34,7 +34,8 @@ exim_aliases:
   superuser-owner: spam
   user-committee-owner: spam
   spam: ':fail: delivery temporarily disabled due to ongoing spam flood'
-exim_domain_aliases: {}
+exim_domain_aliases:
+  staff@lists.openstack.org: staff@lists.openinfra.dev
 exim_routers:
   - mailman_verp_router: |
       {% raw -%}
diff --git a/testinfra/test_lists_o_o.py b/testinfra/test_lists_o_o.py
index cdf27a8557..a38926b640 100644
--- a/testinfra/test_lists_o_o.py
+++ b/testinfra/test_lists_o_o.py
@@ -27,3 +27,9 @@ def test_mm_list_is_present(host):
 
     cmd = host.run('HOST=lists.zuul-ci.org list_lists --bare')
     assert 'zuul-discuss' in cmd.stdout
+
+def test_domain_aliases(host):
+    domain_aliases = host.file('/etc/aliases.domain')
+    assert domain_aliases.exists
+    assert domain_aliases.contains('staff@lists.openstack.org: staff@lists.openinfra.dev')
+