note 55206 added to function.mail

It would be great if someone could help me. I made a php program that allows people to make a mailing list and then send out emails to their clients. But mail() isnt reliable i guess to loop through many, many email. How do i reslove this problem? ---- Manual Page -- http://www.php.net/manual/en/function.mail.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55206 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55206&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55206&report=yes Search -- http://master.php.net/manage/user-notes.php