note 60065 added to ref.mail

I don't quite understand how to prevent my emails from appearing in the Hotmail Spam box. I saw a code: http://uk2.php.net/manual/en/ref.mail.php#59584 but I don't understand it. Please help me! ---- Manual Page -- http://www.php.net/manual/en/ref.mail.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60065 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60065&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60065&report=yes Search -- http://master.php.net/manage/user-notes.php