I signed up for virtualpostmail.com recently since I was moving abroad. It is similar to outbox except all of your mail goes directly to their facility. As in,

I signed up for virtualpostmail.com recently since I was moving abroad. It is similar to outbox except all of your mail goes directly to their facility. As in, you forward you mail to a new address provided by them. Then there's scanning/ forwarding (including international) and package consolidation (i.e. you order multiple packages but would like to forward 1 to save money.) The service has been good so far. it was cheaper than other mail-forwarding services and provided more of the features I was looking for.