Be aware that there is a email phishing scam to pass on a virus. This attempt takes advantage of the USPS and FedEx combination of services tracking information. The email states that FedEx could not deliver a package and then requests that you print a receipt and then go to your closest US Post Office to retrieve the package. Do not open these emails or any attached files.
I have included the contents of an email that I received below for reference:
Subject: Tracking ID (W)LQ00 144 383 0888 0743
|Order Date: Thursday, 24 January 2013, 10:24 AM
|Dear Customer,Your parcel has arrived at the post office at January 29.Our courier was unable to deliver the parcel to you.To receive your parcel, please, go to the nearest office and show this receipt.
|GET & PRINT RECEIPT
|Best Regards, The FedEx Team.