diff --git a/mailman_sync.py b/mailman_sync.py
index 9388468..16067ef 100755
--- a/mailman_sync.py
+++ b/mailman_sync.py
@@ -46,7 +46,7 @@ class ListManager:
         for line in output.stdout.splitlines():
             print(f"[{script} {self.list_name}] {line}")
 
-    def newlist(self, urlhost: str, admin: str):
+    def newlist(self, urlhost: str, emailhost: str, admin: str):
         password = "".join(secrets.choice(PASSWORD_CHARS) for i in range(PASSWORD_LEN))
 
         self._call_script(
@@ -54,6 +54,7 @@ class ListManager:
             [
                 "--quiet",
                 f"--urlhost={urlhost}",
+                f"--emailhost={emailhost}",
                 self.list_name,
                 admin,
                 password,
@@ -62,6 +63,7 @@ class ListManager:
 
     def config_list(
         self,
+        emailhost: str,
         real_name: str,
         moderator: list[str],
         subject_prefix: str,
@@ -71,6 +73,7 @@ class ListManager:
             [
                 # have to modify mlist directly to allow removing suffix
                 "mlist.real_name = " + repr(real_name),
+                "host_name = " + repr(emailhost),
                 "moderator = " + repr(moderator),
                 "subject_prefix = " + repr(subject_prefix),
                 "from_is_list = 1",
@@ -133,6 +136,7 @@ def main(
     list_suffix: str,
     dry_run: bool,
     urlhost: str,
+    emailhost: str,
     admin: str,
 ):
     r = requests.get(api, headers={"Authorization": api_auth})
@@ -155,10 +159,11 @@ def main(
                 print(f"Skipping non-existing list {list_name} in dry run mode")
                 continue
             else:
-                list_manager.newlist(urlhost, admin)
+                list_manager.newlist(urlhost, emailhost, admin)
 
         print(f"Configuring/syncing {list_name}...")
         list_manager.config_list(
+            emailhost,
             props["real_name"],
             props["moderator"],
             props["subject_prefix"],
@@ -180,6 +185,9 @@ def parse_arguments():
     argp.add_argument(
         "--urlhost", help="Urlhost to use when creating new lists", required=True
     )
+    argp.add_argument(
+        "--emailhost", help="Emailhost to use when creating new lists", required=True
+    )
     argp.add_argument(
         "--admin",
         help="Admin email address to use when creating new lists",
@@ -211,6 +219,7 @@ if __name__ == "__main__":
             args.list_suffix,
             args.dry_run,
             args.urlhost,
+            args.emailhost,
             args.admin,
         )
     except subprocess.CalledProcessError as e: