Hi Deco4d,
I’ve moved your post to the Reading and Writing Messages forum.
Mark the email from Facebook as “Junk” so that succeeding messages will be directed to your Junk folder. You may also create a Custom Filter to direct them to your Junk folder. Here’s the link to help you with this:
http://windowslivehelp.com/solutions/settings/archive/2009/03/03/how-to-filter-incoming-messages-and-block-or-allow-from-specific-sender-or-domain.aspx