Hello Helen!
I have a client for whom I pick up her mail at a PO Box once a week. There is a USPS form that she can fill out that authorizes others to pick up the mail from the box. Any important mail (that I don’t handle), I scan and email to her. This client has a residence in Houston but travels a great deal.
I have another client that uses a service called Earthclass Mail which sets up a mailbox. Mail that’s sent to the box is scanned and sent to a contact for review. Then you can say trash, open & scan, or forward to a recipient. I don’t know if they will forward mail (for example: magazines) to a foreign address. The price varies depending on the level of services.