Your best solution may be to open a PO box in the US during your time abroad. Also, there are services that will courier your mail to you abroad with a NYC address (usually an office in a major midtown builidng) However, get ready for a cross-examination. When I did this a few years ago, the UAL phone agent resisted changing to a PO box. Funny, for an industry dealing with travelers - the number-one users of PO boxes and forwarding services.