PHP下MAIL的另一解決方案

前一段時間我接觸到DEC Tru64 Unix 我在上面裝了PHP+APACHE,可以用提供的mail函數始終不能正常發信，於是自編了一個函數，它利用UNIX下的管道和PHP的SOCK函數進行發信，經過實驗非常駐成功，下面是此函數原代碼。
function mymail($mto,$mcc,$msubject,$mbody)
{  
$from="[email protected]";
$sign = "\n";//隨你便寫些什麼
$sendmailpath="/usr/lib/sendmail";//Semdmail路徑
$bound = "========_".uniqid("BCFMail")."==_";//分界符
  $headers =  "MIME-Version: 1.0\n".
            "Content-Type: multipart/mixed; boundary=\"$bound\"\n".
            "Date: ".date("D, d M H:i:s Y ")."\n".
            "From: $from\n".
            "To: $mto\n".
            "Cc: $mcc\n".
            "Subject: $msubject\n".
            "Status: \n".
            "X-Status:\n".
            "X-Mailer: MY Email Interface\n".
            "X-Keywords:\n\n";
  $content="--".$bound."\n"."Content-Type:text/plain;charset=\"GB2312\"\n\n".$mbody.$sign."\n";
  $end = "\n"."--".$bound."--\n";
  $sock = popen("$sendmailpath -t -f '[email protected]'",'w');
  fputs($sock, $headers);
  fputs($sock, $content);
  fputs($sock, $end);
  fputs($sock, ".\n");
  fputs($sock, "QUIT\n");
  pclose($sock);
}