We've received a particularly malicious spam message. You should watch for it and NOT open the attachment, which in all probability contains malware of some sort.
From: "email@example.com" <firstname.lastname@example.org>
THIS RETURN ADDRESS DOES NOT EXIST.
Date: November 16, 2009 9:00:48 AM PST
Subject: your mailbox has been deactivated
We are contacting you in regards to an unusual activity that was identified in your mailbox. As a result, your mailbox has been deactivated. To restore your mailbox, you are required to extract and run the attached mailbox utility.
Best regards, clarkinternet.com technical support.
A .zip file was attached.