前一段时间我接触到DEC Tru64 Unix 我在上面装了PHP+APACHE,可以用提供的mail函数始终不能正常发信，于是自编了一个函数，它利用UNIX下的管道和PHP的SOCK函数进行发信，经过实验非常驻成功，下面是此函数原代码。
function mymail($mto,$mcc,$msubject,$mbody)
{  
$from="webmaster@backhome.com.cn";
$sign = " ";//随你便写些什么
$sendmailpath="/usr/lib/sendmail";//Semdmail路径
$bound = "========_".uniqid("BCFMail")."==_";//分界符
  $headers =  "MIME-Version: 1.0 ".
            "Content-Type: multipart/mixed; boundary="$bound" ".
            "Date: ".date("D, d M H:i:s Y ")." ".
            "From: $from ".
            "To: $mto ".
            "Cc: $mcc ".
            "Subject: $msubject ".
            "Status: ".
            "X-Status: ".
            "X-Mailer: MY Email Interface ".
            "X-Keywords: ";
  $content="--".$bound." "."Content-Type:text/plain;charset="GB2312" ".$mbody.$sign." ";
  $end = " "."--".$bound."-- ";
  $sock = popen("$sendmailpath -t -f 'webmaster@backhome.com.cn'",'w');
  fputs($sock, $headers);
  fputs($sock, $content);
  fputs($sock, $end);
  fputs($sock, ". ");
  fputs($sock, "QUIT ");
  pclose($sock);
}