There is another email going around claiming yuor mailbox has been deactivated. This comes an attached piece of malware that downloads Zbot and other nasties to your system. If you get an email that looks like this, you should delete it immediately.
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, msmvps.com technical support.