Index: all/modules/contrib/notifications/notifications.module
===================================================================
--- all/modules/contrib/notifications/notifications.module	(revision 5180)
+++ all/modules/contrib/notifications/notifications.module	(working copy)
@@ -249,7 +249,7 @@
       'SELECT DISTINCT s.uid, s.sid, s.module, %d, s.send_interval, s.send_method, s.cron, %d, s.conditions '.
       'FROM {notifications} s INNER JOIN {notifications_fields} f ON s.sid = f.sid '.
       implode(' ', $query['join']);
-    $sql .=  " WHERE s.status = 1 AND s.event_type = '%s' AND ((". implode(') OR (', $query['where']) .')) ';
+    $sql .=  " WHERE s.status = 1 AND s.event_type = '%s' AND s.send_interval <> -1 AND ((". implode(') OR (', $query['where']) .')) ';
     // Add one more condition if we don't send notifications on own posts
     if (!variable_get('notifications_sendself', 0)) {
       $sql .= 'AND s.uid != %d ';