diff -rau mailman-2.1.9-orig/Mailman/Gui/General.py mailman-2.1.9/Mailman/Gui/General.py
--- mailman-2.1.9-orig/Mailman/Gui/General.py	2006-08-30 16:54:22.000000000 +0200
+++ mailman-2.1.9/Mailman/Gui/General.py	2008-02-03 13:30:33.000000000 +0200
@@ -420,7 +420,7 @@
 
     def _setValue(self, mlist, property, val, doc):
         if property == 'real_name' and \
-               val.lower() <> mlist.internal_name().lower():
+               val.lower() <> mlist.real_name.lower():
             # These values can't differ by other than case
             doc.addError(_("""<b>real_name</b> attribute not
             changed!  It must differ from the list's name by case
diff -rau mailman-2.1.9-orig/Mailman/MailList.py mailman-2.1.9/Mailman/MailList.py
--- mailman-2.1.9-orig/Mailman/MailList.py	2006-03-12 04:24:53.000000000 +0200
+++ mailman-2.1.9/Mailman/MailList.py	2008-02-03 08:51:55.000000000 +0200
@@ -185,9 +185,14 @@
         return self._full_path
 
     def getListAddress(self, extra=None):
+        posting_addr = self.internal_name()
+        try:
+            posting_addr = self.real_name
+        except:
+            pass
         if extra is None:
-            return '%s@%s' % (self.internal_name(), self.host_name)
-        return '%s-%s@%s' % (self.internal_name(), extra, self.host_name)
+            return '%s@%s' % (posting_addr, self.host_name)
+        return '%s-%s@%s' % (posting_addr, extra, self.host_name)
 
     # For backwards compatibility
     def GetBouncesEmail(self):
@@ -470,8 +475,6 @@
     #
     def Create(self, name, admin, crypted_password,
                langs=None, emailhost=None):
-        if Utils.list_exists(name):
-            raise Errors.MMListAlreadyExistsError, name
         # Validate what will be the list's posting address.  If that's
         # invalid, we don't want to create the mailing list.  The hostname
         # part doesn't really matter, since that better already be valid.
@@ -479,11 +482,19 @@
         # the admin's email address, so transform the exception.
         if emailhost is None:
             emailhost = mm_cfg.DEFAULT_EMAIL_HOST
-        postingaddr = '%s@%s' % (name, emailhost)
+        firstname = name
+        if '@' in name:
+            firstname, emailhost = name.split('@', 1)
+        # Keep posting address sane.
+        postingaddr = '%s@%s' % (firstname, emailhost)
+        name = '%s-%s' % (firstname, emailhost)
         try:
             Utils.ValidateEmail(postingaddr)
         except Errors.MMBadEmailError:
             raise Errors.BadListNameError, postingaddr
+        # Refuse to create lists that already exists
+        if Utils.list_exists(name):
+            raise Errors.MMListAlreadyExistsError, name
         # Validate the admin's email address
         Utils.ValidateEmail(admin)
         self._internal_name = name
@@ -491,6 +502,10 @@
         # Don't use Lock() since that tries to load the non-existant config.pck
         self.__lock.lock()
         self.InitVars(name, admin, crypted_password)
+        # This is for getListAddress
+        self.list_address = postingaddr
+        self.real_name = firstname
+        self.subject_prefix = mm_cfg.DEFAULT_SUBJECT_PREFIX % self.__dict__
         self.CheckValues()
         if langs is None:
             self.available_languages = [self.preferred_language]
@@ -1322,7 +1337,7 @@
         addresses in the recipient headers.
         """
         # This is the list's full address.
-        listfullname = '%s@%s' % (self.internal_name(), self.host_name)
+        listfullname = self.getListAddress()
         recips = []
         # Check all recipient addresses against the list's explicit addresses,
         # specifically To: Cc: and Resent-to:
diff -rau mailman-2.1.9-orig/Mailman/Utils.py mailman-2.1.9/Mailman/Utils.py
--- mailman-2.1.9-orig/Mailman/Utils.py	2006-08-30 16:54:22.000000000 +0200
+++ mailman-2.1.9/Mailman/Utils.py	2008-02-03 11:58:38.000000000 +0200
@@ -215,7 +215,7 @@
     # This means local, unqualified addresses, are no allowed
     if not domain_parts:
         raise Errors.MMBadEmailError, s
-    if len(domain_parts) < 2:
+    if len(domain_parts) < 2 and domain_parts[0] != 'localhost':
         raise Errors.MMBadEmailError, s
 
 
diff -rau mailman-2.1.9-orig/bin/list_lists mailman-2.1.9/bin/list_lists
--- mailman-2.1.9-orig/bin/list_lists	2005-08-27 03:40:17.000000000 +0200
+++ mailman-2.1.9/bin/list_lists	2008-02-08 07:08:19.000000000 +0200
@@ -1,4 +1,4 @@
-#! @PYTHON@
+#! /usr/bin/python
 #
 # Copyright (C) 1998,1999,2000,2001,2002 by the Free Software Foundation, Inc.
 #
@@ -99,7 +99,7 @@
                mlist.web_page_url.find(vhost) == -1:
             continue
         mlists.append(mlist)
-        longest = max(len(mlist.real_name), longest)
+        longest = max(len(mlist.internal_name()), longest)
 
     if not mlists and not bare:
         print _('No matching mailing lists found')
@@ -114,7 +114,7 @@
             print mlist.internal_name()
         else:
             description = mlist.description or _('[no description available]')
-            print '   ', format % (mlist.real_name, description)
+            print '   ', format % (mlist.internal_name(), description)
 
 
 
diff -rau mailman-2.1.9-orig/bin/mailmanctl mailman-2.1.9/bin/mailmanctl
--- mailman-2.1.9-orig/bin/mailmanctl	2006-02-05 06:45:09.000000000 +0200
+++ mailman-2.1.9/bin/mailmanctl	2008-02-08 07:09:53.000000000 +0200
@@ -273,6 +273,8 @@
 
 def check_for_site_list():
     sitelistname = mm_cfg.MAILMAN_SITE_LIST
+    if not '@' in sitelistname:
+        sitelistname = '%s-%s' % (sitelistname, mm_cfg.DEFAULT_EMAIL_HOST)
     try:
         sitelist = MailList(sitelistname, lock=0)
     except Errors.MMUnknownListError:
diff -rau mailman-2.1.9-orig/bin/newlist mailman-2.1.9/bin/newlist
--- mailman-2.1.9-orig/bin/newlist	2005-08-27 03:40:17.000000000 +0200
+++ mailman-2.1.9/bin/newlist	2008-02-03 11:35:03.000000000 +0200
@@ -157,7 +157,7 @@
 
     if '@' in listname:
         # note that --urlhost and --emailhost have precedence
-        listname, domain = listname.split('@', 1)
+        firstname, domain = listname.split('@', 1)
         urlhost = urlhost or domain
         emailhost = emailhost or mm_cfg.VIRTUAL_HOSTS.get(domain, domain)
 
@@ -193,7 +193,7 @@
         oldmask = os.umask(002)
         try:
             try:
-                mlist.Create(listname, owner_mail, pw)
+                mlist.Create(listname, owner_mail, pw, emailhost=emailhost)
             finally:
                 os.umask(oldmask)
         except Errors.BadListNameError, s: