note 72311 added to ref.mail

I have problems with hotmail, it always add mail to spam. What is the problem. I use this mail() Is the problem in header? ---- Server IP: 217.72.76.77 Probable Submitter: 86.61.73.192 ---- Manual Page -- http://www.php.net/manual/en/ref.mail.php Edit -- https://master.php.net/note/edit/72311 Del: integrated -- https://master.php.net/note/delete/72311/integrated Del: useless -- https://master.php.net/note/delete/72311/useless Del: bad code -- https://master.php.net/note/delete/72311/bad+code Del: spam -- https://master.php.net/note/delete/72311/spam Del: non-english -- https://master.php.net/note/delete/72311/non-english Del: in docs -- https://master.php.net/note/delete/72311/in+docs Del: other reasons-- https://master.php.net/note/delete/72311 Reject -- https://master.php.net/note/reject/72311 Search -- https://master.php.net/manage/user-notes.php