diff --git a/src/backend/demo/defaults.py b/src/backend/demo/defaults.py
index 498156914..4ffd91e1f 100644
--- a/src/backend/demo/defaults.py
+++ b/src/backend/demo/defaults.py
@@ -4,4 +4,5 @@
     "users": 1000,
     "teams": 100,
     "max_users_per_team": 100,
+    "domains": 20,
 }
diff --git a/src/backend/demo/management/commands/create_demo.py b/src/backend/demo/management/commands/create_demo.py
index ccce0ecef..009e3631e 100755
--- a/src/backend/demo/management/commands/create_demo.py
+++ b/src/backend/demo/management/commands/create_demo.py
@@ -10,12 +10,15 @@
 from django import db
 from django.conf import settings
 from django.core.management.base import BaseCommand, CommandError
+from django.utils.text import slugify
 
 from faker import Faker
 
 from core import models
 
 from demo import defaults
+from mailbox_manager import models as mailbox_models
+from mailbox_manager.enums import MailDomainStatusChoices
 
 fake = Faker()
 
@@ -152,6 +155,35 @@ def create_demo(stdout):
                 )
         queue.flush()
 
+    with Timeit(stdout, "Creating domains"):
+        for _i in range(defaults.NB_OBJECTS["domains"]):
+            name = fake.domain_name()
+            slug = slugify(name)
+
+            queue.push(
+                mailbox_models.MailDomain(
+                    name=name,
+                    # slug should be automatic but bulk_create doesn't use save
+                    slug=slug,
+                    status=random.choice(MailDomainStatusChoices.choices)[0],
+                )
+            )
+        queue.flush()
+
+    with Timeit(stdout, "Creating accesses to domains"):
+        domains_ids = list(
+            mailbox_models.MailDomain.objects.values_list("id", flat=True)
+        )
+        for domain_id in domains_ids:
+            queue.push(
+                mailbox_models.MailDomainAccess(
+                    domain_id=domain_id,
+                    user_id=random.choice(users_ids),
+                    role=models.RoleChoices.OWNER,
+                )
+            )
+        queue.flush()
+
 
 class Command(BaseCommand):
     """A management command to create a demo database."""
diff --git a/src/backend/demo/tests/test_commands_create_demo.py b/src/backend/demo/tests/test_commands_create_demo.py
index 0ae0d44f5..f48627531 100644
--- a/src/backend/demo/tests/test_commands_create_demo.py
+++ b/src/backend/demo/tests/test_commands_create_demo.py
@@ -10,12 +10,13 @@
 from core import models
 
 from demo import defaults
+from mailbox_manager import models as mailbox_models
 
 TEST_NB_OBJECTS = {
     "users": 5,
     "teams": 3,
-    "max_identities_per_user": 3,
     "max_users_per_team": 5,
+    "domains": 2,
 }
 
 pytestmark = pytest.mark.django_db
@@ -27,9 +28,11 @@ def test_commands_create_demo():
     """The create_demo management command should create objects as expected."""
     call_command("create_demo")
 
-    assert models.User.objects.count() == 5
-    assert models.Team.objects.count() == 3
-    assert models.TeamAccess.objects.count() >= 3
+    assert models.User.objects.count() == TEST_NB_OBJECTS["users"]
+    assert models.Team.objects.count() == TEST_NB_OBJECTS["teams"]
+    assert models.TeamAccess.objects.count() >= TEST_NB_OBJECTS["teams"]
+    assert mailbox_models.MailDomain.objects.count() == TEST_NB_OBJECTS["domains"]
+    assert mailbox_models.MailDomainAccess.objects.count() == TEST_NB_OBJECTS["domains"]
 
 
 def test_commands_createsuperuser():