--- queue_mail-6.x-1.x-dev.module       2010-10-21 11:02:49.000000000 -0700
+++ queue_mail.module   2011-02-24 13:44:41.000000000 -0800
@@ -32,7 +32,7 @@ function queue_mail_menu() {

 function queue_mail_settings_form() {
   $form['queue_mail_keys'] = array(
-    '#type' => 'textfield',
+    '#type' => 'textarea',
     '#title' => t('Mailkeys'),
     '#description' => t('Enter each $mailkey separated by commas. To delete mailkeys, delete it from the textbox and submit form.') .'<br/>'. t('To find mail keys, use the second parameter in drupal_mail, e.g. user_mail, register_pending_approval_admin'),
     '#default_value' => variable_get('queue_mail_keys', ''),