mta-smtps-starttls

1 files changed, 9 insertions, 0 deletions

diff --git a/src/mailman/interfaces/configuration.py b/src/mailman/interfaces/configuration.py
index 2a9369fd1..7cee9972a 100644
--- a/src/mailman/interfaces/configuration.py
+++ b/src/mailman/interfaces/configuration.py
@@ -31,6 +31,15 @@ class MissingConfigurationFileError(MailmanError):
 
 
 @public
+class InvalidConfigurationError(MailmanError):
+    """A configuration key had an unexpected/invalid value."""
+
+    def __init__(self, key, value):
+        self.key = key
+        self.value = value
+
+
+@public
 class IConfiguration(Interface):
     """Marker interface; used for adaptation in the REST API."""