1 files changed, 8 insertions, 0 deletions

diff --git a/src/mailman/model/roster.py b/src/mailman/model/roster.py
index bffafd809..89ef98531 100644
--- a/src/mailman/model/roster.py
+++ b/src/mailman/model/roster.py
@@ -120,6 +120,14 @@ class MemberRoster(AbstractRoster):
 
 
 
+class NonmemberRoster(AbstractRoster):
+    """Return all the nonmembers of a list."""
+
+    name = 'nonmember'
+    role = MemberRole.nonmember
+
+
+
 class OwnerRoster(AbstractRoster):
     """Return all the owners of a list."""