I am about to move and I will still have access to my old house but it is not that close. I am expecting some important mails within the next couple of months and I can not really change my address with them. I am thinking about doing a mail forwarding with the post office but I am not sure if it is reliable. If for some reason the post office fails to deliver to my new address, would the mails still go to my old address? I just do not want the mails to be sent back to the sender - I would be really screwed if that happens. Thanks for your tips.