This is an IRS scam. The message I received is: 15187726281 IRS. We have just received a notification regarding your tax filings from the headquarters which will get expired in the next 24 working hours and once it get expired after that you will be taking under custody by the local police as there are four serious allegations pressed on your name at this moment. We would request you to get back to us so that we can discuss about this case. Total Scam!!!