diff -urN mailman-2.1.4/Mailman/Utils.py mailman-2.1.4.new/Mailman/Utils.py
--- mailman-2.1.4/Mailman/Utils.py	2003-12-26 23:50:04.000000000 +0100
+++ mailman-2.1.4.new/Mailman/Utils.py	2004-01-13 10:58:05.000000000 +0100
@@ -638,7 +638,7 @@
     else:
         # See the note in Defaults.py concerning DEFAULT_HOST_NAME
         # vs. DEFAULT_EMAIL_HOST.
-        hostname = mm_cfg.DEFAULT_HOST_NAME or mm_cfg.DEFAULT_EMAIL_HOST
+        hostname = mm_cfg.DEFAULT_URL_HOST or mm_cfg.DEFAULT_EMAIL_HOST
         return hostname.lower()