def METHOD_NAME(self):
    """Try to exceed defined limits."""
    domain = Domain.objects.get(name="test.com")
    domain.domainobjectlimit_set.filter(name="mailboxes").update(
        max_value=3)
    limit = domain.domainobjectlimit_set.get(name="mailboxes")
    self.assertFalse(limit.is_exceeded())
    username = "toto@test.com"
    values = {
        "username": "toto@test.com",
        "first_name": "Tester", "last_name": "Toto",
        "password1": "Toto1234", "password2": "Toto1234",
        "role": "SimpleUsers", "quota_act": True,
        "is_active": True, "email": username, "stepid": "step2",
    }
    self.ajax_post(reverse("admin:account_add"), values, 200)
    self.assertTrue(limit.is_exceeded())
    values["username"] = "titi@test.com"
    values["email"] = "titi@test.com"
    self.ajax_post(reverse("admin:account_add"), values, 400)
    # Set unlimited value
    limit.max_value = -1
    limit.save(update_fields=["max_value"])
    self.ajax_post(reverse("admin:account_add"), values)
    self.assertFalse(limit.is_exceeded())