adds new config variable in case there is no default admin group in ACL/ADMIN/FILTER

canaille/core/configuration.py

@@ -312,3 +312,11 @@ class CoreSettings(BaseModel):
     characters. If the value entered is 0 or None, or greater than 4096,
     then 4096 will be retained.
     """
+
+    ADMIN_EMAIL: str = None
+    """Administration email contact.
+
+    In certain special cases (example : questioning about password
+    corruption), it is necessary to provide an administration contact
+    email.
+    """

tests/conftest.py

@@ -151,6 +151,7 @@ def configuration(smtpd):
                 },
                 "disable_existing_loggers": False,
             },
+            "ADMIN_EMAIL": "admin_default_mail@mymail.com",
         },
     }
     return conf