note 55388 added to faq

when I send an email to my yahoo email from my server using mail() function the sender of email is "nobody". I think i should change some options in php.ini but i dont know how.Please help me! by the way, my server is linux and im not the administrator of my server and dont have directly access to php.ini file. (what should i do if my server be Windows) ---- Manual Page -- http://www.php.net/manual/en/faq.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55388 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55388&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55388&report=yes Search -- http://master.php.net/manage/user-notes.php