Index: modules/ezmlm/ezmlm.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/ezmlm/ezmlm.module,v
retrieving revision 1.15
diff -u -r1.15 ezmlm.module
--- modules/ezmlm/ezmlm.module	25 Oct 2005 01:51:07 -0000	1.15
+++ modules/ezmlm/ezmlm.module	15 Nov 2005 19:40:41 -0000
@@ -153,6 +153,10 @@
   if ($edit['ezmlm_email'] && !preg_match("/^$user@($domain|(\[($ipv4|$ipv6)\]))$/", $edit['ezmlm_email'])) { 
     return Array('The email address you entered is not valid.', 'error');
   }
+  if (!$edit[ezmlm-list]) {
+    return Array('You must select a list to subscribe to.', 'error');
+  }
+  
   list($user_name, $user_domain) = split('@', $edit['ezmlm_email']);
   $lists = _ezmlm_get_lists();
   foreach ($lists as $list_text => $list_email) {