这是我建议您为站点A获取RSS提要的内容

http://codex.wordpress.org/WordPress_Feeds

将此插件安装到站点B

https://wordpress.org/plugins/rss-post-importer/

它可以选择抓取帖子并另存为草稿。至于电子邮件，您可能需要添加一些代码，以便在添加新帖子时发送电子邮件。

function SendOutEmail($to, $subject, $message){

    global $wpdb;   
    add_filter( \'wp_mail_content_type\',\'set_mail_content_type\' );
    $headers = \'From: no-reply <[email protected]>\';

    if (is_array($to)){
        foreach ($to as $email){
            wp_mail( $email, $subject, $message ,$headers);
        }
    }else{
        wp_mail( $to, $subject, $message ,$headers);
    }   
}

function set_mail_content_type(){
    return "text/html";
}