Thanks to pardoX at news.grc.com

http://adacosta.spaces.live.com/blog/cns&a...#33;28072.entry
QUOTE
Dear Windows Live Hotmail Customer,

You are receiving this note because you have used Microsoft Office Outlook, Outlook Express, or Entourage to view your Windows Live HotmailĀ®. Microsoft is changing the way these programs access Hotmail e-mail which will require you to take action.

To continue to receive e-mail from your Hotmail account, please select one of the alternative solutions below before September 1, 2009. After this day, new e-mail can only be delivered to your mail programs through the following alternative solutions. ...
All Windows Live Hotmail users should have received the notification (apparently) ... but for the information of others, if they need/want to know, that's what it's all about.

More at http://emailsupport.spaces.live.com/Blog/c...!5359.entry