To all non US residents:
You will receive your 'Mickey Mail' at your resort when you check-in. Luggage tags and all.
I live in Asia and when we made our first visit to WDW in 08, WDW mailed off our documents to us. BUT, they've since stopped that. In 09, we received ours at our resort. And we are expecting the same this year as well. No biggie actually. We simply checked in at the Magical Express counter at MCO with our passports and were given boarding passes for ME which then whisked us away to our resort. Painless.