Spam Email

I got a spam email today that was sent to my email address. This email is used exclusively for and hasn’t been used anywhere else, the same as I use a specific email address for each site that I have to sign up to.
Any thoughts?
Answer #1
Are you suggesting that your email got leaked to spamsites through WBB?
Answer #2
I think you could be a victim of a dictionary attack. You can’t keep your e-mail address a spam-virgin forever i’m afraid.
Spammers may also use a form of dictionary attack in order to harvest email addresses, known as a directory harvest attack, where valid email addresses at a specific domain are found by guessing email address using common usernames in email addresses at that domain. For example, trying alan@example.com, alana@example.com, alanb@example.com, etc. and any that are accepted for delivery by the recipient email server, instead of rejected, are added to the list of theoretically valid email addresses for that domain.
Source:http://en.wikipedia.org/wiki/Email_address_harvesting
Answer #3
Forget about it… Dont u filter your SPAM mail ?