請問白兔及各位:誰有關於此郵寄H1B的經曆:

周一用USPS express 寄出,保證今天3:00PM 受到.當track status 時,得到結果:
We attempted to deliver your item at 11:10 AM on April 3, 2007 in LAGUNA NIGUEL, CA 92607 and a notice was left. A second delivery attempt will be made. If unsuccessful, we will hold it for five business days and then it will be returned to the sender. Information, if available, is updated every evening. Please check again later.
有誰知道,申請算不算被收到?