mail() function error

I have setup Apache and PHP on my local machine as a testing server. So
to test the mail() function i have set the SMTP_host thing in php.ini
to what i think is the hotmail SMTP server.

Whenever i try to use the mail() function it comes back with this
warning:

Warning: mail() [function.mail]: Failed to connect to mailserver at
"http://services.msn.com/svcs/hotmail/httpmail.asp" port 25, verify
your "SMTP" and "smtp_port" setting in php.ini or use ini_set()

I got that SMTP address for hotmail from Outlook so i am sure it should
be working.

What am i doing wrong?