I'm using outlook for the first time, and today recieved around 2000 SPAM e-mails, along the lines of "delivery status notification - to "X" failed" to adresses i dont know :P
any ideas how I can get rid of this its driving me insane?
Looks like a spammer has used your e-mail address in a Reply-To field. You've done nothing wrong.
Depending upon the content of the rejected -mails, you might get some success with anti-spam tools such as MailWasher or 0spam (search TheAnswerBank or use your favourite search engine to find out more about these).