We have used www.MyRVMail.com for the last two years. They list the return addresses for all mail on line. You can then decide if you want it trashed, scanned or forwarded. No extra charge for trash, $2.50 per piece (up to 10 pages I think) for scanning and additional postage for forwarding.
So far, in two years, we have had 1 piece scanned and packages forwarded about 5 times. We have set up all of our normal bills/statements for on-line payment so we don't get very much mail and most of what we do get is junk.
Once I called them and had them open the envelope and fax it to me. They did not charge me for that. There is a "set-up" fee with a Passport America discount and a monthly fee and, of course, postage for forwarding.
They are located in Crestview, FL. There are a nice group of folks that work there and they are always very helpful.