- $rows = DBA::select('post-delivery', [], ['inbox-id' => ItemURI::getIdByURI($inbox)], ['order' => ['created']]);
+ $rows = DBA::select('post-delivery', [], ["`inbox-id` = ? AND `failed` < ?", ItemURI::getIdByURI($inbox), DI::config()->get('system', 'worker_defer_limit')], ['order' => ['created']]);