--- simplenews.module	2005-11-24 00:38:45.000000000 -0500
+++ drupal/modules/simplenews/simplenews.module	2005-12-03 00:56:30.000000000 -0500
@@ -975,9 +975,9 @@
   $name = $term ? $term->name : 'Unassigned newsletter';
   $node->title = "[$name] ".$node->title;
   $node->message = $node->body."\n\n--\n".t('Footer will be appended here');
-  $recipients = $input->test_address;
+  $recipients = explode(',',$input->test_address); 
   foreach ($recipients as $to) {
-    $node->to = $to;
+    $node->to = trim($to);
     sn_mail_send($node);
   }
 }