Index: notifications.module
===================================================================
--- notifications.module	(revision 497)
+++ notifications.module	(working copy)
@@ -1285,8 +1285,10 @@
  * Implementation of hook_cron()
  */
 function notifications_cron() {
-  include_once drupal_get_path('module', 'notifications') .'/notifications.cron.inc';
-  notifications_process_run();
+  if (variable_get('notifications_process_on_cron', TRUE)) {
+    include_once drupal_get_path('module', 'notifications') .'/notifications.cron.inc';
+    notifications_process_run();
+  }
 }
 
 /**
Index: notifications.admin.inc
===================================================================
--- notifications.admin.inc	(revision 497)
+++ notifications.admin.inc	(working copy)
@@ -60,9 +60,15 @@
     '#type' => 'fieldset',
     '#title' => t('Limits for queue processing'),
     '#tree' => TRUE,
-    '#description' => t('These are the limits for each cron run on queue processing. The process will stop when it first meets any of them. Set to 0 for no limit.'),
+    '#description' => t('These are the limits for each run on queue processing. The process will stop when it first meets any of them. Set to 0 for no limit.'),
     '#collapsible' => TRUE, '#collapsed' => TRUE,
   );
+  $form['notifications_process_on_cron'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Process on cron'),
+    '#default_value' => variable_get('notifications_process_on_cron', TRUE),
+    '#description' => t('If disabled you must use code elsewhere to actually send your e-mails such as a <a href="http://drupal.org/project/drush">drush</a> script.'),
+  );
   $form['notifications_process_limit']['row'] = array(
     '#title' => t('Number of rows'),
     '#type' => 'textfield',