diff --git a/mailman_sync.py b/mailman_sync.py
index fbb3046..39c1747 100755
--- a/mailman_sync.py
+++ b/mailman_sync.py
@@ -1,7 +1,17 @@
 #!/usr/bin/env python3
 
 """
-Update Mailman 2 lists via a json API of the form {"LIST": ["ADDRESS", ...]}
+Update Mailman 2 lists via a json API of the form:
+{
+  "LIST": {
+    "real_name": "REAL_NAME",
+    "moderator": ["ADDRESS", ...],
+    "subject_prefix": "PREFIX",
+    "reply_to_address": "REPLY_TO_ADDRESS",
+    "members": ["ADDRESS", ...]
+  },
+  ...
+}
 """
 
 import argparse
@@ -50,13 +60,22 @@ class ListManager:
             ],
         )
 
-    def config_list(self):
+    def config_list(
+        self,
+        real_name: str,
+        moderator: list[str],
+        subject_prefix: str,
+        reply_to_address: str,
+    ):
         config_changes = "\n".join(
             [
-                # TODO: set real_name, moderator, subject prefix, and reply-to address
+                "real_name = " + repr(real_name),
+                "moderator = " + repr(moderator),
+                "subject_prefix = " + repr(subject_prefix),
                 "from_is_list = 1",
                 "anonymous_list = 1",
                 "first_strip_reply_to = 1",
+                "reply_to_address = " + repr(reply_to_address),
                 # Use explicit address for Reply-To
                 "reply_goes_to_list = 2",
                 # quiet member management
@@ -124,7 +143,7 @@ def main(
         capture_output=True,
         check=True,
     ).stdout.split("\n")
-    for name, members in expected_lists.items():
+    for name, props in expected_lists.items():
         list_name = name + list_suffix
         list_manager = ListManager(mailman_bin, list_name, dry_run)
         if list_name not in existing_lists:
@@ -135,8 +154,13 @@ def main(
                 list_manager.newlist(urlhost, admin)
 
         print(f"Configuring/syncing {list_name}...")
-        list_manager.config_list()
-        list_manager.sync_members(members)
+        list_manager.config_list(
+            props["real_name"],
+            props["moderator"],
+            props["subject_prefix"],
+            props["reply_to_address"],
+        )
+        list_manager.sync_members(props["members"])
 
 
 def parse_arguments():