// Disable emails for core updates add_filter('auto_core_update_send_email','__return_false');add_filter('send_core_update_notification_email','__return_false');// Disable emails for plugin updates add_filter('auto_plugin_update_send_email','__return_false');// Disable emails for theme updates add_filter('auto_theme_update_send_email','__return_false');add_filter('wp_mail','block_wp_update_emails');function block_wp_update_emails($args){if (strpos($args['subject'],'update') !==false){// Prevent sending emails related to updates return false}return $args}