Complete classic webmail organizer views

src/apps/config/config/web

@@ -7,6 +7,7 @@
   "public_base_url": "",
   "external_https": false,
   "login_domains": [],
+  "administrators": ["admin"],
   "allow_basic_auth": true,
   "trusted_proxies": ["127.0.0.1", "::1"],
   "client_ip_header": "X-Forwarded-For",

src/apps/config/tests/test_configuration.py

@@ -127,6 +127,19 @@ class ConfigurationModelTest(unittest.TestCase):
         self.assertTrue(any("web.login_domains[0]" in message
                             for message in messages))
 
+    def test_web_administrators_are_explicit_and_validated(self):
+        defaults = templates()
+        self.assertEqual(defaults["web"]["administrators"], ["admin"])
+        configs = apply_scenario(defaults, Scenario(
+            hostname="mail.example.test", bind_address="192.0.2.10",
+            domains=["example.test"], admin_password="0123456789ab",
+        ))
+        configs["web"]["administrators"] = []
+        messages = [str(issue) for issue in validate_all(
+            configs, defaults, check_files=False)]
+        self.assertTrue(any("web.administrators" in message
+                            for message in messages))
+
     def test_web_login_domains_follow_hosted_mail_domains_on_sync(self):
         configs = apply_scenario(templates(), Scenario(
             hostname="mail.example.test", bind_address="192.0.2.10",