Verify Your Yahoo Account SCAM

This scam seem real and quite frightening if you are not very aware of the online world.
There is spelling error and the email address is not convincing at all. Why would yahoo's admin use marta@yahoo.com as the email address?
This email is just not formal enough to be believable.

----- Forwarded Message ----
From: Yahoo-account-services-us <marta@yahoo.com>
Sent: Monday, 19 July 2010 21:50:02
Subject: Account

Accounts,Yahoo would shut down all unused Accounts,You will have to confirm your E-mail by fill in your login info below after clicking the reply botton or your Account will be suspended within one week for security reasons.
 
CONFIRM YOUR IDENTITY. VERIFY YOUR FREE YAHOOACCOUNT NOW !!! 

 
* Username: ...............................
 
* Password: ................................
 
* Date of Birth: ............................
 
* Occupation:................................
 
* Country of Residence:................................
 
After following the instructions in the sheet, your account will not be interrupted and will continue as normal. Thanks for your attention to this request. We apologize for any inconvenience.

 
Warning!!!  Account owner that refuses to update his or her account before two weeks of receiving this warning will lose his or her account permanently.